56100665 has 16 divisors (see below), whose sum is σ = 68851200. Its totient is φ = 43872192.

The previous prime is 56100637. The next prime is 56100677. The reversal of 56100665 is 56600165.

It is a cyclic number.

It is not a de Polignac number, because 56100665 - 2⁶ = 56100601 is a prime.

It is a super-2 number, since 2×56100665² = 6294569226884450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42404 + ... + 43706.

It is an arithmetic number, because the mean of its divisors is an integer number (4303200).

Almost surely, 2^56100665 is an apocalyptic number.

It is an amenable number.

56100665 is a deficient number, since it is larger than the sum of its proper divisors (12750535).

56100665 is a wasteful number, since it uses less digits than its factorization.

56100665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 56100665 is about 7490.0377168610. The cubic root of 56100665 is about 382.8153436357.

Subtracting 56100665 from its reverse (56600165), we obtain a triangular number (499500 = T₉₉₉).

It can be divided in two parts, 56100 and 665, that added together give a palindrome (56765).

The spelling of 56100665 in words is "fifty-six million, one hundred thousand, six hundred sixty-five".