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252424525 = 5271142211
BaseRepresentation
bin11110000101110…
…11000101001101
3122120222111100111
433002323011031
51004110041100
641014200021
76153400363
oct1702730515
9576874314
10252424525
1111a53a311
1270653011
13403b1132
142574b633
15172626ba
hexf0bb14d

252424525 has 12 divisors (see below), whose sum is σ = 317417184. Its totient is φ = 199094000.

The previous prime is 252424499. The next prime is 252424541. The reversal of 252424525 is 525424252.

It is not a de Polignac number, because 252424525 - 25 = 252424493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69331 + ... + 72880.

It is an arithmetic number, because the mean of its divisors is an integer number (26451432).

Almost surely, 2252424525 is an apocalyptic number.

252424525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252424525 is a deficient number, since it is larger than the sum of its proper divisors (64992659).

252424525 is a wasteful number, since it uses less digits than its factorization.

252424525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142292 (or 142287 counting only the distinct ones).

The product of its digits is 32000, while the sum is 31.

The square root of 252424525 is about 15887.8735203928. The cubic root of 252424525 is about 631.9904502710.

Adding to 252424525 its reverse (525424252), we get a palindrome (777848777).

The spelling of 252424525 in words is "two hundred fifty-two million, four hundred twenty-four thousand, five hundred twenty-five".

Divisors: 1 5 25 71 355 1775 142211 711055 3555275 10096981 50484905 252424525