55611516 has 24 divisors (see below), whose sum is σ = 135402624. Its totient is φ = 17731120.

The previous prime is 55611511. The next prime is 55611527. The reversal of 55611516 is 61511655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55611511) by changing a digit.

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, 100470 + ... + 101021.

It is an arithmetic number, because the mean of its divisors is an integer number (5641776).

Almost surely, 2^55611516 is an apocalyptic number.

It is an amenable number.

55611516 is an abundant number, since it is smaller than the sum of its proper divisors (79791108).

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

55611516 is a wasteful number, since it uses less digits than its factorization.

55611516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201521 (or 201519 counting only the distinct ones).

The product of its digits is 4500, while the sum is 30.

The square root of 55611516 is about 7457.3129208851. The cubic root of 55611516 is about 381.6994886270.

The spelling of 55611516 in words is "fifty-five million, six hundred eleven thousand, five hundred sixteen".