85625440 has 24 divisors (see below), whose sum is σ = 202290480. Its totient is φ = 34250112.

The previous prime is 85625347. The next prime is 85625471. The reversal of 85625440 is 4452658.

It is a junction number, because it is equal to n+sod(n) for n = 85625396 and 85625405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267420 + ... + 267739.

It is an arithmetic number, because the mean of its divisors is an integer number (8428770).

Almost surely, 2^85625440 is an apocalyptic number.

85625440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85625440 is an abundant number, since it is smaller than the sum of its proper divisors (116665040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85625440 is a wasteful number, since it uses less digits than its factorization.

85625440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535174 (or 535166 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 85625440 is about 9253.4015367323. The cubic root of 85625440 is about 440.7587459457.

The spelling of 85625440 in words is "eighty-five million, six hundred twenty-five thousand, four hundred forty".