55149588 has 36 divisors (see below), whose sum is σ = 150130708. Its totient is φ = 16968960.

The previous prime is 55149587. The next prime is 55149613. The reversal of 55149588 is 88594155.

It is a happy number.

55149588 is a `hidden beast` number, since 55 + 14 + 9 + 588 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6874884 + 48274704 = 2622^2 + 6948^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55149587) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58453 + ... + 59388.

Almost surely, 2^55149588 is an apocalyptic number.

It is an amenable number.

55149588 is an abundant number, since it is smaller than the sum of its proper divisors (94981120).

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

55149588 is a wasteful number, since it uses less digits than its factorization.

55149588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117864 (or 117859 counting only the distinct ones).

The product of its digits is 288000, while the sum is 45.

The square root of 55149588 is about 7426.2768599077. The cubic root of 55149588 is about 380.6397073434.

The spelling of 55149588 in words is "fifty-five million, one hundred forty-nine thousand, five hundred eighty-eight".