55509932 has 12 divisors (see below), whose sum is σ = 97356336. Its totient is φ = 27693840.

The previous prime is 55509931. The next prime is 55509977. The reversal of 55509932 is 23990555.

55509932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55509931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13208 + ... + 16895.

It is an arithmetic number, because the mean of its divisors is an integer number (8113028).

Almost surely, 2^55509932 is an apocalyptic number.

It is an amenable number.

55509932 is a deficient number, since it is larger than the sum of its proper divisors (41846404).

55509932 is a wasteful number, since it uses less digits than its factorization.

55509932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30568 (or 30566 counting only the distinct ones).

The product of its (nonzero) digits is 60750, while the sum is 38.

The square root of 55509932 is about 7450.4987752499. The cubic root of 55509932 is about 381.4669337109.

The spelling of 55509932 in words is "fifty-five million, five hundred nine thousand, nine hundred thirty-two".