56056665 has 64 divisors (see below), whose sum is σ = 107864064. Its totient is φ = 24323328.

The previous prime is 56056661. The next prime is 56056673. The reversal of 56056665 is 56665065.

It is a happy number.

It is not a de Polignac number, because 56056665 - 2² = 56056661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56056661) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 182442 + ... + 182748.

It is an arithmetic number, because the mean of its divisors is an integer number (1685376).

Almost surely, 2^56056665 is an apocalyptic number.

It is an amenable number.

56056665 is a deficient number, since it is larger than the sum of its proper divisors (51807399).

56056665 is a wasteful number, since it uses less digits than its factorization.

56056665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406.

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 56056665 is about 7487.0999058380. The cubic root of 56056665 is about 382.7152362031.

Subtracting 56056665 from its reverse (56665065), we obtain a square (608400 = 780²).

The spelling of 56056665 in words is "fifty-six million, fifty-six thousand, six hundred sixty-five".