55611788 has 6 divisors (see below), whose sum is σ = 97320636. Its totient is φ = 27805892.

The previous prime is 55611779. The next prime is 55611791. The reversal of 55611788 is 88711655.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6951470 + ... + 6951477.

It is an arithmetic number, because the mean of its divisors is an integer number (16220106).

Almost surely, 2^55611788 is an apocalyptic number.

It is an amenable number.

55611788 is a deficient number, since it is larger than the sum of its proper divisors (41708848).

55611788 is a wasteful number, since it uses less digits than its factorization.

55611788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13902951 (or 13902949 counting only the distinct ones).

The product of its digits is 67200, while the sum is 41.

The square root of 55611788 is about 7457.3311579948. The cubic root of 55611788 is about 381.7001109327.

The spelling of 55611788 in words is "fifty-five million, six hundred eleven thousand, seven hundred eighty-eight".