56380993 has 4 divisors (see below), whose sum is σ = 59697540. Its totient is φ = 53064448.

The previous prime is 56380979. The next prime is 56380997. The reversal of 56380993 is 39908365.

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 33837489 + 22543504 = 5817^2 + 4748^2 .

It is a cyclic number.

It is not a de Polignac number, because 56380993 - 2²⁵ = 22826561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56380997) 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, 1658248 + ... + 1658281.

It is an arithmetic number, because the mean of its divisors is an integer number (14924385).

Almost surely, 2^56380993 is an apocalyptic number.

It is an amenable number.

56380993 is a deficient number, since it is larger than the sum of its proper divisors (3316547).

56380993 is a wasteful number, since it uses less digits than its factorization.

56380993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316546.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 56380993 is about 7508.7277883807. The cubic root of 56380993 is about 383.4519113102.

The spelling of 56380993 in words is "fifty-six million, three hundred eighty thousand, nine hundred ninety-three".