56515466253 has 4 divisors (see below), whose sum is σ = 75353955008. Its totient is φ = 37676977500.

The previous prime is 56515466251. The next prime is 56515466257. The reversal of 56515466253 is 35266451565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 56515466253 - 2¹ = 56515466251 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 (56515466251) 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, 9419244373 + ... + 9419244378.

It is an arithmetic number, because the mean of its divisors is an integer number (18838488752).

Almost surely, 2^56515466253 is an apocalyptic number.

It is an amenable number.

56515466253 is a deficient number, since it is larger than the sum of its proper divisors (18838488755).

56515466253 is a wasteful number, since it uses less digits than its factorization.

56515466253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18838488754.

The product of its digits is 3240000, while the sum is 48.

The spelling of 56515466253 in words is "fifty-six billion, five hundred fifteen million, four hundred sixty-six thousand, two hundred fifty-three".