56022251 has 4 divisors (see below), whose sum is σ = 56858472. Its totient is φ = 55186032.

The previous prime is 56022247. The next prime is 56022271. The reversal of 56022251 is 15222065.

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 56022251 - 2² = 56022247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56022271) 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, 418010 + ... + 418143.

It is an arithmetic number, because the mean of its divisors is an integer number (14214618).

Almost surely, 2^56022251 is an apocalyptic number.

56022251 is a deficient number, since it is larger than the sum of its proper divisors (836221).

56022251 is an equidigital number, since it uses as much as digits as its factorization.

56022251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836220.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 56022251 is about 7484.8013333688. The cubic root of 56022251 is about 382.6369020253.

The spelling of 56022251 in words is "fifty-six million, twenty-two thousand, two hundred fifty-one".