56621654153 has 8 divisors (see below), whose sum is σ = 57148878600. Its totient is φ = 56094571008.

The previous prime is 56621654147. The next prime is 56621654183. The reversal of 56621654153 is 35145612665.

56621654153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7107838864 + 49513815289 = 84308^2 + 222517^2 .

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 56621654153 - 2²² = 56617459849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56621654183) 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, 879383 + ... + 941571.

It is an arithmetic number, because the mean of its divisors is an integer number (7143609825).

Almost surely, 2^56621654153 is an apocalyptic number.

It is an amenable number.

56621654153 is a deficient number, since it is larger than the sum of its proper divisors (527224447).

56621654153 is a wasteful number, since it uses less digits than its factorization.

56621654153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70651.

The product of its digits is 648000, while the sum is 44.

The spelling of 56621654153 in words is "fifty-six billion, six hundred twenty-one million, six hundred fifty-four thousand, one hundred fifty-three".