87917583425 has 24 divisors (see below), whose sum is σ = 124672080000. Its totient is φ = 60247486080.

The previous prime is 87917583319. The next prime is 87917583431. The reversal of 87917583425 is 52438571978.

It is a de Polignac number, because none of the positive numbers 2^k-87917583425 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a Curzon 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 23 ways as a sum of consecutive naturals, for example, 111701 + ... + 433949.

It is an arithmetic number, because the mean of its divisors is an integer number (5194670000).

Almost surely, 2^87917583425 is an apocalyptic number.

It is an amenable number.

87917583425 is a deficient number, since it is larger than the sum of its proper divisors (36754496575).

87917583425 is a wasteful number, since it uses less digits than its factorization.

87917583425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323825 (or 323820 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 59.

The spelling of 87917583425 in words is "eighty-seven billion, nine hundred seventeen million, five hundred eighty-three thousand, four hundred twenty-five".