55149732 has 36 divisors (see below), whose sum is σ = 152080656. Its totient is φ = 16711920.

The previous prime is 55149727. The next prime is 55149767. The reversal of 55149732 is 23794155.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69238 + ... + 70029.

Almost surely, 2^55149732 is an apocalyptic number.

It is an amenable number.

55149732 is an abundant number, since it is smaller than the sum of its proper divisors (96930924).

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

55149732 is a wasteful number, since it uses less digits than its factorization.

55149732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139288 (or 139283 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 55149732 is about 7426.2865552038. The cubic root of 55149732 is about 380.6400386367.

The spelling of 55149732 in words is "fifty-five million, one hundred forty-nine thousand, seven hundred thirty-two".