55499272 has 48 divisors (see below), whose sum is σ = 110216340. Its totient is φ = 26191872.

The previous prime is 55499267. The next prime is 55499287. The reversal of 55499272 is 27299455.

It can be written as a sum of positive squares in 6 ways, for example, as 13586596 + 41912676 = 3686^2 + 6474^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 491088 + ... + 491200.

Almost surely, 2^55499272 is an apocalyptic number.

It is an amenable number.

55499272 is a deficient number, since it is larger than the sum of its proper divisors (54717068).

55499272 is a wasteful number, since it uses less digits than its factorization.

55499272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 217 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The square root of 55499272 is about 7449.7833525546. The cubic root of 55499272 is about 381.4425134694.

The spelling of 55499272 in words is "fifty-five million, four hundred ninety-nine thousand, two hundred seventy-two".