56075321 has 4 divisors (see below), whose sum is σ = 56163444. Its totient is φ = 55987200.

The previous prime is 56075317. The next prime is 56075323. The reversal of 56075321 is 12357065.

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

It can be written as a sum of positive squares in 2 ways, for example, as 35236096 + 20839225 = 5936^2 + 4565^2 .

It is a cyclic number.

It is not a de Polignac number, because 56075321 - 2² = 56075317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56075323) 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, 43100 + ... + 44381.

It is an arithmetic number, because the mean of its divisors is an integer number (14040861).

Almost surely, 2^56075321 is an apocalyptic number.

It is an amenable number.

56075321 is a deficient number, since it is larger than the sum of its proper divisors (88123).

56075321 is an equidigital number, since it uses as much as digits as its factorization.

56075321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88122.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 56075321 is about 7488.3456784526. The cubic root of 56075321 is about 382.7576881490.

The spelling of 56075321 in words is "fifty-six million, seventy-five thousand, three hundred twenty-one".