525403252 has 24 divisors (see below), whose sum is σ = 1035401472. Its totient is φ = 231115200.

The previous prime is 525403247. The next prime is 525403261. The reversal of 525403252 is 252304525.

It is a self number, because there is not a number n which added to its sum of digits gives 525403252.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 191233 + ... + 193960.

It is an arithmetic number, because the mean of its divisors is an integer number (43141728).

Almost surely, 2^525403252 is an apocalyptic number.

It is an amenable number.

525403252 is a deficient number, since it is larger than the sum of its proper divisors (509998220).

525403252 is a wasteful number, since it uses less digits than its factorization.

525403252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385239 (or 385237 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 525403252 is about 22921.6764657387. The cubic root of 525403252 is about 806.9208156534.

Adding to 525403252 its reverse (252304525), we get a palindrome (777707777).

The spelling of 525403252 in words is "five hundred twenty-five million, four hundred three thousand, two hundred fifty-two".