525235690 has 32 divisors (see below), whose sum is σ = 1082075904. Its totient is φ = 179815680.

The previous prime is 525235679. The next prime is 525235693. The reversal of 525235690 is 96532525.

It is a super-2 number, since 2×525235690² = 551745060099552200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (525235693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45730 + ... + 56050.

It is an arithmetic number, because the mean of its divisors is an integer number (33814872).

Almost surely, 2^525235690 is an apocalyptic number.

525235690 is an abundant number, since it is smaller than the sum of its proper divisors (556840214).

525235690 is a wasteful number, since it uses less digits than its factorization.

525235690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11062.

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 525235690 is about 22918.0210751278. The cubic root of 525235690 is about 806.8350252683.

The spelling of 525235690 in words is "five hundred twenty-five million, two hundred thirty-five thousand, six hundred ninety".