85617552 has 20 divisors (see below), whose sum is σ = 221178800. Its totient is φ = 28539168.

The previous prime is 85617547. The next prime is 85617557. The reversal of 85617552 is 25571658.

It is an interprime number because it is at equal distance from previous prime (85617547) and next prime (85617557).

It is a self number, because there is not a number n which added to its sum of digits gives 85617552.

It is not an unprimeable number, because it can be changed into a prime (85617557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891802 + ... + 891897.

It is an arithmetic number, because the mean of its divisors is an integer number (11058940).

Almost surely, 2^85617552 is an apocalyptic number.

It is an amenable number.

85617552 is an abundant number, since it is smaller than the sum of its proper divisors (135561248).

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

85617552 is a wasteful number, since it uses less digits than its factorization.

85617552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783710 (or 1783704 counting only the distinct ones).

The product of its digits is 84000, while the sum is 39.

The square root of 85617552 is about 9252.9753052734. The cubic root of 85617552 is about 440.7452109816.

The spelling of 85617552 in words is "eighty-five million, six hundred seventeen thousand, five hundred fifty-two".