85651425 has 72 divisors (see below), whose sum is σ = 166281024. Its totient is φ = 43623360.

The previous prime is 85651409. The next prime is 85651453. The reversal of 85651425 is 52415658.

It is not a de Polignac number, because 85651425 - 2⁴ = 85651409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85651425.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 139419 + ... + 140031.

Almost surely, 2^85651425 is an apocalyptic number.

It is an amenable number.

85651425 is a deficient number, since it is larger than the sum of its proper divisors (80629599).

85651425 is a wasteful number, since it uses less digits than its factorization.

85651425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 644 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 85651425 is about 9254.8055084913. The cubic root of 85651425 is about 440.8033275468.

The spelling of 85651425 in words is "eighty-five million, six hundred fifty-one thousand, four hundred twenty-five".