55332830 has 64 divisors (see below), whose sum is σ = 120434688. Its totient is φ = 17902080.

The previous prime is 55332817. The next prime is 55332847. The reversal of 55332830 is 3823355.

It is a junction number, because it is equal to n+sod(n) for n = 55332793 and 55332802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93014 + ... + 93606.

It is an arithmetic number, because the mean of its divisors is an integer number (1881792).

Almost surely, 2^55332830 is an apocalyptic number.

55332830 is an abundant number, since it is smaller than the sum of its proper divisors (65101858).

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

55332830 is a wasteful number, since it uses less digits than its factorization.

55332830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 55332830 is about 7438.6040357045. The cubic root of 55332830 is about 381.0608170058.

The spelling of 55332830 in words is "fifty-five million, three hundred thirty-two thousand, eight hundred thirty".