865752625 has 32 divisors (see below), whose sum is σ = 1159894944. Its totient is φ = 642816000.

The previous prime is 865752617. The next prime is 865752647. The reversal of 865752625 is 526257568.

865752625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 540888049 + 324864576 = 23257^2 + 18024^2 .

It is not a de Polignac number, because 865752625 - 2³ = 865752617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152335 + ... + 157915.

It is an arithmetic number, because the mean of its divisors is an integer number (36246717).

Almost surely, 2^865752625 is an apocalyptic number.

865752625 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

865752625 is a deficient number, since it is larger than the sum of its proper divisors (294142319).

865752625 is a wasteful number, since it uses less digits than its factorization.

865752625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5686 (or 5676 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 46.

The square root of 865752625 is about 29423.6745665799. The cubic root of 865752625 is about 953.0842051876.

The spelling of 865752625 in words is "eight hundred sixty-five million, seven hundred fifty-two thousand, six hundred twenty-five".