87256925 has 12 divisors (see below), whose sum is σ = 123655776. Its totient is φ = 59833200.

The previous prime is 87256913. The next prime is 87256931. The reversal of 87256925 is 52965278.

It is not a de Polignac number, because 87256925 - 2⁸ = 87256669 is a prime.

It is a super-2 number, since 2×87256925² = 15227541920911250, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249131 + ... + 249480.

It is an arithmetic number, because the mean of its divisors is an integer number (10304648).

Almost surely, 2^87256925 is an apocalyptic number.

It is an amenable number.

87256925 is a deficient number, since it is larger than the sum of its proper divisors (36398851).

87256925 is a wasteful number, since it uses less digits than its factorization.

87256925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498628 (or 498623 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 87256925 is about 9341.1415255310. The cubic root of 87256925 is about 443.5405200517.

The spelling of 87256925 in words is "eighty-seven million, two hundred fifty-six thousand, nine hundred twenty-five".