85455900 has 54 divisors (see below), whose sum is σ = 267859592. Its totient is φ = 22788000.

The previous prime is 85455899. The next prime is 85455919. The reversal of 85455900 is 955458.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46576 + ... + 48375.

Almost surely, 2^85455900 is an apocalyptic number.

It is an amenable number.

85455900 is an abundant number, since it is smaller than the sum of its proper divisors (182403692).

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

85455900 is a wasteful number, since it uses less digits than its factorization.

85455900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94971 (or 94961 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 85455900 is about 9244.2360419885. The cubic root of 85455900 is about 440.4676501689.

The spelling of 85455900 in words is "eighty-five million, four hundred fifty-five thousand, nine hundred".