55503244 has 12 divisors (see below), whose sum is σ = 97693344. Its totient is φ = 27590864.

The previous prime is 55503223. The next prime is 55503251. The reversal of 55503244 is 44230555.

It is a super-2 number, since 2×55503244² = 6161220189047072, 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, 39412 + ... + 40795.

It is an arithmetic number, because the mean of its divisors is an integer number (8141112).

Almost surely, 2^55503244 is an apocalyptic number.

It is an amenable number.

55503244 is a deficient number, since it is larger than the sum of its proper divisors (42190100).

55503244 is a wasteful number, since it uses less digits than its factorization.

55503244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80384 (or 80382 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 55503244 is about 7450.0499327186. The cubic root of 55503244 is about 381.4516130093.

Adding to 55503244 its reverse (44230555), we get a palindrome (99733799).

The spelling of 55503244 in words is "fifty-five million, five hundred three thousand, two hundred forty-four".