56220042501 has 96 divisors (see below), whose sum is σ = 95519640320. Its totient is φ = 31203532800.

The previous prime is 56220042481. The next prime is 56220042517. The reversal of 56220042501 is 10524002265.

56220042501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56220042501 - 2⁵ = 56220042469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56220042101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 169848906 + ... + 169849236.

Almost surely, 2^56220042501 is an apocalyptic number.

It is an amenable number.

56220042501 is a deficient number, since it is larger than the sum of its proper divisors (39299597819).

56220042501 is a wasteful number, since it uses less digits than its factorization.

56220042501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 56220042501 its reverse (10524002265), we get a palindrome (66744044766).

The spelling of 56220042501 in words is "fifty-six billion, two hundred twenty million, forty-two thousand, five hundred one".