525641565 has 16 divisors (see below), whose sum is σ = 850478400. Its totient is φ = 277191552.

The previous prime is 525641533. The next prime is 525641579. The reversal of 525641565 is 565146525.

It is a happy number.

It is not a de Polignac number, because 525641565 - 2⁵ = 525641533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195535 + ... + 198204.

It is an arithmetic number, because the mean of its divisors is an integer number (53154900).

Almost surely, 2^525641565 is an apocalyptic number.

It is an amenable number.

525641565 is a deficient number, since it is larger than the sum of its proper divisors (324836835).

525641565 is a wasteful number, since it uses less digits than its factorization.

525641565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393836.

The product of its digits is 180000, while the sum is 39.

The square root of 525641565 is about 22926.8742963362. The cubic root of 525641565 is about 807.0427985636.

The spelling of 525641565 in words is "five hundred twenty-five million, six hundred forty-one thousand, five hundred sixty-five".