525625689 has 4 divisors (see below), whose sum is σ = 700834256. Its totient is φ = 350417124.

The previous prime is 525625673. The next prime is 525625717. The reversal of 525625689 is 986526525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 525625689 - 2⁴ = 525625673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (525627689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87604279 + ... + 87604284.

It is an arithmetic number, because the mean of its divisors is an integer number (175208564).

Almost surely, 2^525625689 is an apocalyptic number.

It is an amenable number.

525625689 is a deficient number, since it is larger than the sum of its proper divisors (175208567).

525625689 is a wasteful number, since it uses less digits than its factorization.

525625689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175208566.

The product of its digits is 1296000, while the sum is 48.

The square root of 525625689 is about 22926.5280624869. The cubic root of 525625689 is about 807.0346734195.

The spelling of 525625689 in words is "five hundred twenty-five million, six hundred twenty-five thousand, six hundred eighty-nine".