86257825 has 6 divisors (see below), whose sum is σ = 106959734. Its totient is φ = 69006240.

The previous prime is 86257819. The next prime is 86257849. The reversal of 86257825 is 52875268.

It can be written as a sum of positive squares in 3 ways, for example, as 898704 + 85359121 = 948^2 + 9239^2 .

It is not a de Polignac number, because 86257825 - 2³ = 86257817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1725132 + ... + 1725181.

Almost surely, 2^86257825 is an apocalyptic number.

It is an amenable number.

86257825 is a deficient number, since it is larger than the sum of its proper divisors (20701909).

86257825 is a wasteful number, since it uses less digits than its factorization.

86257825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3450323 (or 3450318 counting only the distinct ones).

The product of its digits is 268800, while the sum is 43.

The square root of 86257825 is about 9287.5090847869. The cubic root of 86257825 is about 441.8411572717.

The spelling of 86257825 in words is "eighty-six million, two hundred fifty-seven thousand, eight hundred twenty-five".