85192650 has 108 divisors (see below), whose sum is σ = 237706326. Its totient is φ = 21873600.

The previous prime is 85192643. The next prime is 85192697. The reversal of 85192650 is 5629158.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 81378441 + 3814209 = 9021^2 + 1953^2 .

It is a super-2 number, since 2×85192650² = 14515575228045000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 432352 + ... + 432548.

Almost surely, 2^85192650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85192650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118853163).

85192650 is an abundant number, since it is smaller than the sum of its proper divisors (152513676).

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

85192650 is a wasteful number, since it uses less digits than its factorization.

85192650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 85192650 is about 9229.9864571948. The cubic root of 85192650 is about 440.0148927466.

The spelling of 85192650 in words is "eighty-five million, one hundred ninety-two thousand, six hundred fifty".