56409707 has 4 divisors (see below), whose sum is σ = 56451936. Its totient is φ = 56367480.

The previous prime is 56409659. The next prime is 56409709. The reversal of 56409707 is 70790465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56409707 - 2⁶ = 56409643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56409709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19043 + ... + 21804.

It is an arithmetic number, because the mean of its divisors is an integer number (14112984).

Almost surely, 2^56409707 is an apocalyptic number.

56409707 is a deficient number, since it is larger than the sum of its proper divisors (42229).

56409707 is a wasteful number, since it uses less digits than its factorization.

56409707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42228.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 56409707 is about 7510.6395866131. The cubic root of 56409707 is about 383.5169957117.

The spelling of 56409707 in words is "fifty-six million, four hundred nine thousand, seven hundred seven".