55740244 has 24 divisors (see below), whose sum is σ = 113758400. Its totient is φ = 23888088.

The previous prime is 55740239. The next prime is 55740253. The reversal of 55740244 is 44204755.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18942 + ... + 21685.

Almost surely, 2^55740244 is an apocalyptic number.

It is an amenable number.

55740244 is an abundant number, since it is smaller than the sum of its proper divisors (58018156).

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

55740244 is a wasteful number, since it uses less digits than its factorization.

55740244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40652 (or 40636 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 55740244 is about 7465.9389228683. The cubic root of 55740244 is about 381.9937774815.

Adding to 55740244 its reverse (44204755), we get a palindrome (99944999).

The spelling of 55740244 in words is "fifty-five million, seven hundred forty thousand, two hundred forty-four".