55572244 has 24 divisors (see below), whose sum is σ = 119694848. Its totient is φ = 21984480.

The previous prime is 55572239. The next prime is 55572247. The reversal of 55572244 is 44227555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55572247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75972 + ... + 76699.

Almost surely, 2^55572244 is an apocalyptic number.

It is an amenable number.

55572244 is an abundant number, since it is smaller than the sum of its proper divisors (64122604).

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

55572244 is a wasteful number, since it uses less digits than its factorization.

55572244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152695 (or 152693 counting only the distinct ones).

The product of its digits is 56000, while the sum is 34.

The square root of 55572244 is about 7454.6793358266. The cubic root of 55572244 is about 381.6096173595.

Adding to 55572244 its reverse (44227555), we get a palindrome (99799799).

The spelling of 55572244 in words is "fifty-five million, five hundred seventy-two thousand, two hundred forty-four".