56945739 has 8 divisors (see below), whose sum is σ = 75962880. Its totient is φ = 37946216.

The previous prime is 56945731. The next prime is 56945741. The reversal of 56945739 is 93754965.

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 56945739 - 2³ = 56945731 is a prime.

It is a super-2 number, since 2×56945739² = 6485634380512242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56945731) 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, 8782 + ... + 13820.

It is an arithmetic number, because the mean of its divisors is an integer number (9495360).

Almost surely, 2^56945739 is an apocalyptic number.

56945739 is a deficient number, since it is larger than the sum of its proper divisors (19017141).

56945739 is a wasteful number, since it uses less digits than its factorization.

56945739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8809.

The product of its digits is 1020600, while the sum is 48.

The square root of 56945739 is about 7546.2400571410. The cubic root of 56945739 is about 384.7279553394.

The spelling of 56945739 in words is "fifty-six million, nine hundred forty-five thousand, seven hundred thirty-nine".