56620247457 has 8 divisors (see below), whose sum is σ = 75495504384. Its totient is φ = 37745911088.

The previous prime is 56620247443. The next prime is 56620247491. The reversal of 56620247457 is 75474202665.

56620247457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56620247457 - 2¹⁹ = 56619723169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56620247407) 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, 70878 + ... + 343895.

It is an arithmetic number, because the mean of its divisors is an integer number (9436938048).

Almost surely, 2^56620247457 is an apocalyptic number.

It is an amenable number.

56620247457 is a deficient number, since it is larger than the sum of its proper divisors (18875256927).

56620247457 is a wasteful number, since it uses less digits than its factorization.

56620247457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460279.

The product of its (nonzero) digits is 2822400, while the sum is 48.

The spelling of 56620247457 in words is "fifty-six billion, six hundred twenty million, two hundred forty-seven thousand, four hundred fifty-seven".