85490556 has 24 divisors (see below), whose sum is σ = 203723520. Its totient is φ = 27890352.

The previous prime is 85490507. The next prime is 85490567. The reversal of 85490556 is 65509458.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75226 + ... + 76353.

It is an arithmetic number, because the mean of its divisors is an integer number (8488480).

Almost surely, 2^85490556 is an apocalyptic number.

It is an amenable number.

85490556 is an abundant number, since it is smaller than the sum of its proper divisors (118232964).

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

85490556 is a wasteful number, since it uses less digits than its factorization.

85490556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151633 (or 151631 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 42.

The square root of 85490556 is about 9246.1103173172. The cubic root of 85490556 is about 440.5271849069.

The spelling of 85490556 in words is "eighty-five million, four hundred ninety thousand, five hundred fifty-six".