55597236 has 24 divisors (see below), whose sum is σ = 133234080. Its totient is φ = 18031392.

The previous prime is 55597219. The next prime is 55597247. The reversal of 55597236 is 63279555.

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 7 ways as a sum of consecutive naturals, for example, 62166 + ... + 63053.

It is an arithmetic number, because the mean of its divisors is an integer number (5551420).

Almost surely, 2^55597236 is an apocalyptic number.

It is an amenable number.

55597236 is an abundant number, since it is smaller than the sum of its proper divisors (77636844).

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

55597236 is a wasteful number, since it uses less digits than its factorization.

55597236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125263 (or 125261 counting only the distinct ones).

The product of its digits is 283500, while the sum is 42.

The square root of 55597236 is about 7456.3554099842. The cubic root of 55597236 is about 381.6668147272. Note that the first 3 decimals are identical.

The spelling of 55597236 in words is "fifty-five million, five hundred ninety-seven thousand, two hundred thirty-six".