90551132 has 12 divisors (see below), whose sum is σ = 181102320. Its totient is φ = 38807616.

The previous prime is 90551119. The next prime is 90551147. The reversal of 90551132 is 23115509.

90551132 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1616957 + ... + 1617012.

It is an arithmetic number, because the mean of its divisors is an integer number (15091860).

Almost surely, 2^90551132 is an apocalyptic number.

It is an amenable number.

90551132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90551132 is a wasteful number, since it uses less digits than its factorization.

90551132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233980 (or 3233978 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 90551132 is about 9515.8358539857. The cubic root of 90551132 is about 449.0533713671.

The spelling of 90551132 in words is "ninety million, five hundred fifty-one thousand, one hundred thirty-two".