55611968 has 14 divisors (see below), whose sum is σ = 110355126. Its totient is φ = 27805952.

The previous prime is 55611929. The next prime is 55612001. The reversal of 55611968 is 86911655.

It can be written as a sum of positive squares in only one way, i.e., 31719424 + 23892544 = 5632^2 + 4888^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434405 + ... + 434532.

It is an arithmetic number, because the mean of its divisors is an integer number (7882509).

Almost surely, 2^55611968 is an apocalyptic number.

It is an amenable number.

55611968 is a deficient number, since it is larger than the sum of its proper divisors (54743158).

55611968 is an equidigital number, since it uses as much as digits as its factorization.

55611968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868949 (or 868939 counting only the distinct ones).

The product of its digits is 64800, while the sum is 41.

The square root of 55611968 is about 7457.3432266458. The cubic root of 55611968 is about 381.7005227515.

The spelling of 55611968 in words is "fifty-five million, six hundred eleven thousand, nine hundred sixty-eight".