56409727 has 32 divisors (see below), whose sum is σ = 68947200. Its totient is φ = 45561600.

The previous prime is 56409721. The next prime is 56409733. The reversal of 56409727 is 72790465.

It is an interprime number because it is at equal distance from previous prime (56409721) and next prime (56409733).

It is a cyclic number.

It is not a de Polignac number, because 56409727 - 2⁷ = 56409599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56409727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56409721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248388 + ... + 248614.

It is an arithmetic number, because the mean of its divisors is an integer number (2154600).

Almost surely, 2^56409727 is an apocalyptic number.

56409727 is a deficient number, since it is larger than the sum of its proper divisors (12537473).

56409727 is a wasteful number, since it uses less digits than its factorization.

56409727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 56409727 is about 7510.6409180575. The cubic root of 56409727 is about 383.5170410368.

The spelling of 56409727 in words is "fifty-six million, four hundred nine thousand, seven hundred twenty-seven".