56209747 has 8 divisors (see below), whose sum is σ = 61447680. Its totient is φ = 50993160.

The previous prime is 56209691. The next prime is 56209753. The reversal of 56209747 is 74790265.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56209747 - 2²³ = 47821139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56209757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454 + ... + 10612.

It is an arithmetic number, because the mean of its divisors is an integer number (7680960).

Almost surely, 2^56209747 is an apocalyptic number.

56209747 is a deficient number, since it is larger than the sum of its proper divisors (5237933).

56209747 is a wasteful number, since it uses less digits than its factorization.

56209747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10673.

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

The square root of 56209747 is about 7497.3159864047. The cubic root of 56209747 is about 383.0632980799.

The spelling of 56209747 in words is "fifty-six million, two hundred nine thousand, seven hundred forty-seven".