56220261 has 8 divisors (see below), whose sum is σ = 75661344. Its totient is φ = 37129680.

The previous prime is 56220251. The next prime is 56220289. The reversal of 56220261 is 16202265.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56220261 - 2¹⁴ = 56203877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56220251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87250 + ... + 87891.

It is an arithmetic number, because the mean of its divisors is an integer number (9457668).

Almost surely, 2^56220261 is an apocalyptic number.

It is an amenable number.

56220261 is a deficient number, since it is larger than the sum of its proper divisors (19441083).

56220261 is a wasteful number, since it uses less digits than its factorization.

56220261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175251.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 56220261 is about 7498.0171378839. The cubic root of 56220261 is about 383.0871805121.

The spelling of 56220261 in words is "fifty-six million, two hundred twenty thousand, two hundred sixty-one".