55535244 has 12 divisors (see below), whose sum is σ = 129582264. Its totient is φ = 18511744.

The previous prime is 55535239. The next prime is 55535257. The reversal of 55535244 is 44253555.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×55535244² = 6168326652279072, which contains 22 as substring.

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, 2313957 + ... + 2313980.

It is an arithmetic number, because the mean of its divisors is an integer number (10798522).

Almost surely, 2^55535244 is an apocalyptic number.

It is an amenable number.

55535244 is an abundant number, since it is smaller than the sum of its proper divisors (74047020).

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

55535244 is a wasteful number, since it uses less digits than its factorization.

55535244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4627944 (or 4627942 counting only the distinct ones).

The product of its digits is 60000, while the sum is 33.

The square root of 55535244 is about 7452.1972598691. The cubic root of 55535244 is about 381.5249066623.

Adding to 55535244 its reverse (44253555), we get a palindrome (99788799).

The spelling of 55535244 in words is "fifty-five million, five hundred thirty-five thousand, two hundred forty-four".