525501252 has 18 divisors (see below), whose sum is σ = 1328350478. Its totient is φ = 175167072.

The previous prime is 525501241. The next prime is 525501253. The reversal of 525501252 is 252105525.

525501252 is a `hidden beast` number, since 52 + 550 + 12 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 503822916 + 21678336 = 22446^2 + 4656^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (525501253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7298593 + ... + 7298664.

Almost surely, 2^525501252 is an apocalyptic number.

It is an amenable number.

525501252 is an abundant number, since it is smaller than the sum of its proper divisors (802849226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525501252 is a wasteful number, since it uses less digits than its factorization.

525501252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14597267 (or 14597262 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 525501252 is about 22923.8140805582. The cubic root of 525501252 is about 806.9709824053.

Adding to 525501252 its reverse (252105525), we get a palindrome (777606777).

The spelling of 525501252 in words is "five hundred twenty-five million, five hundred one thousand, two hundred fifty-two".