55290832 has 20 divisors (see below), whose sum is σ = 107259876. Its totient is φ = 27610880.

The previous prime is 55290799. The next prime is 55290841. The reversal of 55290832 is 23809255.

It can be written as a sum of positive squares in 2 ways, for example, as 42302016 + 12988816 = 6504^2 + 3604^2 .

It is a super-2 number, since 2×55290832² = 6114152206504448, which contains 22 as substring.

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, 15348 + ... + 18604.

Almost surely, 2^55290832 is an apocalyptic number.

It is an amenable number.

55290832 is a deficient number, since it is larger than the sum of its proper divisors (51969044).

55290832 is a wasteful number, since it uses less digits than its factorization.

55290832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4326 (or 4320 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 55290832 is about 7435.7805239262. The cubic root of 55290832 is about 380.9643833401.

The spelling of 55290832 in words is "fifty-five million, two hundred ninety thousand, eight hundred thirty-two".