55624516 has 6 divisors (see below), whose sum is σ = 97342910. Its totient is φ = 27812256.

The previous prime is 55624489. The next prime is 55624519. The reversal of 55624516 is 61542655.

It can be written as a sum of positive squares in only one way, i.e., 42302016 + 13322500 = 6504^2 + 3650^2 .

It is not an unprimeable number, because it can be changed into a prime (55624519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6953061 + ... + 6953068.

Almost surely, 2^55624516 is an apocalyptic number.

It is an amenable number.

55624516 is a deficient number, since it is larger than the sum of its proper divisors (41718394).

55624516 is a wasteful number, since it uses less digits than its factorization.

55624516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13906133 (or 13906131 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 55624516 is about 7458.1844975838. The cubic root of 55624516 is about 381.7292289105.

The spelling of 55624516 in words is "fifty-five million, six hundred twenty-four thousand, five hundred sixteen".