56321747 has 4 divisors (see below), whose sum is σ = 56751816. Its totient is φ = 55891680.

The previous prime is 56321743. The next prime is 56321773. The reversal of 56321747 is 74712365.

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 56321747 - 2² = 56321743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56321743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214838 + ... + 215099.

It is an arithmetic number, because the mean of its divisors is an integer number (14187954).

Almost surely, 2^56321747 is an apocalyptic number.

56321747 is a deficient number, since it is larger than the sum of its proper divisors (430069).

56321747 is a wasteful number, since it uses less digits than its factorization.

56321747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430068.

The product of its digits is 35280, while the sum is 35.

The square root of 56321747 is about 7504.7816090810. The cubic root of 56321747 is about 383.3175518813.

The spelling of 56321747 in words is "fifty-six million, three hundred twenty-one thousand, seven hundred forty-seven".