85525134408 has 96 divisors (see below), whose sum is σ = 271177320960. Its totient is φ = 23839752960.

The previous prime is 85525134389. The next prime is 85525134503. The reversal of 85525134408 is 80443152558.

85525134408 is a `hidden beast` number, since 8 + 55 + 251 + 344 + 0 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2048760 + ... + 2090087.

It is an arithmetic number, because the mean of its divisors is an integer number (2824763760).

Almost surely, 2^85525134408 is an apocalyptic number.

It is an amenable number.

85525134408 is an abundant number, since it is smaller than the sum of its proper divisors (185652186552).

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

85525134408 is a wasteful number, since it uses less digits than its factorization.

85525134408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4138907 (or 4138900 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 45.

The spelling of 85525134408 in words is "eighty-five billion, five hundred twenty-five million, one hundred thirty-four thousand, four hundred eight".