55531544 has 8 divisors (see below), whose sum is σ = 104121660. Its totient is φ = 27765768.

The previous prime is 55531529. The next prime is 55531577. The reversal of 55531544 is 44513555.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 55531544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3470714 + ... + 3470729.

Almost surely, 2^55531544 is an apocalyptic number.

It is an amenable number.

55531544 is a deficient number, since it is larger than the sum of its proper divisors (48590116).

55531544 is a wasteful number, since it uses less digits than its factorization.

55531544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6941449 (or 6941445 counting only the distinct ones).

The product of its digits is 30000, while the sum is 32.

The square root of 55531544 is about 7451.9490068035. The cubic root of 55531544 is about 381.5164335234.

The spelling of 55531544 in words is "fifty-five million, five hundred thirty-one thousand, five hundred forty-four".