55244544 has 36 divisors (see below), whose sum is σ = 147033096. Its totient is φ = 18414592.

The previous prime is 55244537. The next prime is 55244557. The reversal of 55244544 is 44544255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35199 + ... + 36734.

Almost surely, 2^55244544 is an apocalyptic number.

It is an amenable number.

55244544 is an abundant number, since it is smaller than the sum of its proper divisors (91788552).

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

55244544 is an equidigital number, since it uses as much as digits as its factorization.

55244544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71952 (or 71938 counting only the distinct ones).

The product of its digits is 64000, while the sum is 33.

The square root of 55244544 is about 7432.6673543217. The cubic root of 55244544 is about 380.8580426084.

Adding to 55244544 its reverse (44544255), we get a palindrome (99788799).

The spelling of 55244544 in words is "fifty-five million, two hundred forty-four thousand, five hundred forty-four".