56111668 has 6 divisors (see below), whose sum is σ = 98195426. Its totient is φ = 28055832.

The previous prime is 56111639. The next prime is 56111677. The reversal of 56111668 is 86611165.

It can be written as a sum of positive squares in only one way, i.e., 31787044 + 24324624 = 5638^2 + 4932^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7013955 + ... + 7013962.

Almost surely, 2^56111668 is an apocalyptic number.

It is an amenable number.

56111668 is a deficient number, since it is larger than the sum of its proper divisors (42083758).

56111668 is a wasteful number, since it uses less digits than its factorization.

56111668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14027921 (or 14027919 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 56111668 is about 7490.7721898346. The cubic root of 56111668 is about 382.8403691375.

The spelling of 56111668 in words is "fifty-six million, one hundred eleven thousand, six hundred sixty-eight".