85622564 has 6 divisors (see below), whose sum is σ = 149839494. Its totient is φ = 42811280.

The previous prime is 85622549. The next prime is 85622599. The reversal of 85622564 is 46522658.

It can be written as a sum of positive squares in only one way, i.e., 57638464 + 27984100 = 7592^2 + 5290^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10702817 + ... + 10702824.

It is an arithmetic number, because the mean of its divisors is an integer number (24973249).

Almost surely, 2^85622564 is an apocalyptic number.

It is an amenable number.

85622564 is a deficient number, since it is larger than the sum of its proper divisors (64216930).

85622564 is a wasteful number, since it uses less digits than its factorization.

85622564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21405645 (or 21405643 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 85622564 is about 9253.2461331146. The cubic root of 85622564 is about 440.7538111337.

The spelling of 85622564 in words is "eighty-five million, six hundred twenty-two thousand, five hundred sixty-four".