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252412525 = 5245722093
BaseRepresentation
bin11110000101110…
…00001001101101
3122120221212220001
433002320021231
51004104200100
641014024301
76153320401
oct1702701155
9576855801
10252412525
1111a5312a2
1270648091
13403a8831
1425747101
151725dd6a
hexf0b826d

252412525 has 12 divisors (see below), whose sum is σ = 313690612. Its totient is φ = 201479040.

The previous prime is 252412519. The next prime is 252412529. The reversal of 252412525 is 525214252.

252412525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 23011209 + 229401316 = 4797^2 + 15146^2 .

It is a de Polignac number, because none of the positive numbers 2k-252412525 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252412493 and 252412502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252412529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 379 + ... + 22471.

Almost surely, 2252412525 is an apocalyptic number.

252412525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252412525 is a deficient number, since it is larger than the sum of its proper divisors (61278087).

252412525 is a wasteful number, since it uses less digits than its factorization.

252412525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22560 (or 22555 counting only the distinct ones).

The product of its digits is 8000, while the sum is 28.

The square root of 252412525 is about 15887.4958693936. The cubic root of 252412525 is about 631.9804353888.

Adding to 252412525 its reverse (525214252), we get a palindrome (777626777).

The spelling of 252412525 in words is "two hundred fifty-two million, four hundred twelve thousand, five hundred twenty-five".

Divisors: 1 5 25 457 2285 11425 22093 110465 552325 10096501 50482505 252412525