55036224 has 42 divisors (see below), whose sum is σ = 157753050. Its totient is φ = 18345216.

The previous prime is 55036187. The next prime is 55036237. The reversal of 55036224 is 42263055.

It can be written as a sum of positive squares in only one way, i.e., 48441600 + 6594624 = 6960^2 + 2568^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47199 + ... + 48350.

It is an arithmetic number, because the mean of its divisors is an integer number (3756025).

Almost surely, 2^55036224 is an apocalyptic number.

It is an amenable number.

55036224 is an abundant number, since it is smaller than the sum of its proper divisors (102716826).

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

55036224 is a wasteful number, since it uses less digits than its factorization.

55036224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95567 (or 95554 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 55036224 is about 7418.6403066869. The cubic root of 55036224 is about 380.3787175414.

Adding to 55036224 its reverse (42263055), we get a palindrome (97299279).

The spelling of 55036224 in words is "fifty-five million, thirty-six thousand, two hundred twenty-four".