90539532 has 30 divisors (see below), whose sum is σ = 236689068. Its totient is φ = 30179736.

The previous prime is 90539507. The next prime is 90539543. The reversal of 90539532 is 23593509.

90539532 is a `hidden beast` number, since 90 + 5 + 39 + 532 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 139398 + ... + 140045.

Almost surely, 2^90539532 is an apocalyptic number.

It is an amenable number.

90539532 is an abundant number, since it is smaller than the sum of its proper divisors (146149536).

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

90539532 is a wasteful number, since it uses less digits than its factorization.

90539532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279459 (or 279448 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 36.

The square root of 90539532 is about 9515.2263241607. The cubic root of 90539532 is about 449.0341953080.

The spelling of 90539532 in words is "ninety million, five hundred thirty-nine thousand, five hundred thirty-two".