56220071 has 8 divisors (see below), whose sum is σ = 59673024. Its totient is φ = 52783360.

The previous prime is 56220053. The next prime is 56220077. The reversal of 56220071 is 17002265.

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

It is a cyclic number.

It is not a de Polignac number, because 56220071 - 2⁶ = 56220007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56220077) 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, 3491 + ... + 11163.

It is an arithmetic number, because the mean of its divisors is an integer number (7459128).

Almost surely, 2^56220071 is an apocalyptic number.

56220071 is a deficient number, since it is larger than the sum of its proper divisors (3452953).

56220071 is a wasteful number, since it uses less digits than its factorization.

56220071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8121.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 56220071 is about 7498.0044678568. The cubic root of 56220071 is about 383.0867489557.

The spelling of 56220071 in words is "fifty-six million, two hundred twenty thousand, seventy-one".