56390963 has 4 divisors (see below), whose sum is σ = 58842768. Its totient is φ = 53939160.

The previous prime is 56390959. The next prime is 56391001. The reversal of 56390963 is 36909365.

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 56390963 - 2² = 56390959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56390963.

It is not an unprimeable number, because it can be changed into a prime (56390263) 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, 1225868 + ... + 1225913.

It is an arithmetic number, because the mean of its divisors is an integer number (14710692).

Almost surely, 2^56390963 is an apocalyptic number.

56390963 is a deficient number, since it is larger than the sum of its proper divisors (2451805).

56390963 is a wasteful number, since it uses less digits than its factorization.

56390963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451804.

The product of its (nonzero) digits is 131220, while the sum is 41.

The square root of 56390963 is about 7509.3916531234. The cubic root of 56390963 is about 383.4745122496.

The spelling of 56390963 in words is "fifty-six million, three hundred ninety thousand, nine hundred sixty-three".