85424925 has 12 divisors (see below), whose sum is σ = 141236000. Its totient is φ = 45559920.

The previous prime is 85424909. The next prime is 85424947. The reversal of 85424925 is 52942458.

It is not a de Polignac number, because 85424925 - 2⁴ = 85424909 is a prime.

It is a super-2 number, since 2×85424925² = 14594835622511250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 569425 + ... + 569574.

Almost surely, 2^85424925 is an apocalyptic number.

It is an amenable number.

85424925 is a deficient number, since it is larger than the sum of its proper divisors (55811075).

85424925 is a wasteful number, since it uses less digits than its factorization.

85424925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139012 (or 1139007 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 85424925 is about 9242.5605218467. The cubic root of 85424925 is about 440.4144253117.

The spelling of 85424925 in words is "eighty-five million, four hundred twenty-four thousand, nine hundred twenty-five".