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252224125 = 5373131211
BaseRepresentation
bin11110000100010…
…10001001111101
3122120121022110021
433002022021331
51004032133000
641010012141
76151604206
oct1702121175
9576538407
10252224125
1111a41279a
1270577051
1340340b5a
14256d85ad
151722311a
hexf08a27d

252224125 has 32 divisors (see below), whose sum is σ = 323047296. Its totient is φ = 196560000.

The previous prime is 252224123. The next prime is 252224129. The reversal of 252224125 is 521422252.

252224125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 252224125 - 21 = 252224123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252224125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252224123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1195270 + ... + 1195480.

It is an arithmetic number, because the mean of its divisors is an integer number (10095228).

Almost surely, 2252224125 is an apocalyptic number.

252224125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252224125 is a deficient number, since it is larger than the sum of its proper divisors (70823171).

252224125 is a wasteful number, since it uses less digits than its factorization.

252224125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 420 counting only the distinct ones).

The product of its digits is 3200, while the sum is 25.

The square root of 252224125 is about 15881.5655714416. The cubic root of 252224125 is about 631.8231601115.

Adding to 252224125 its reverse (521422252), we get a palindrome (773646377).

The spelling of 252224125 in words is "two hundred fifty-two million, two hundred twenty-four thousand, one hundred twenty-five".

Divisors: 1 5 25 73 125 131 211 365 655 1055 1825 3275 5275 9125 9563 15403 16375 26375 27641 47815 77015 138205 239075 385075 691025 1195375 1925375 2017793 3455125 10088965 50444825 252224125