51455825553 has 16 divisors (see below), whose sum is σ = 76437282816. Its totient is φ = 30521829840.

The previous prime is 51455825521. The next prime is 51455825563. The reversal of 51455825553 is 35552855415.

51455825553 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 51455825553 - 2⁵ = 51455825521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51455825563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16586401 + ... + 16589502.

It is an arithmetic number, because the mean of its divisors is an integer number (4777330176).

Almost surely, 2^51455825553 is an apocalyptic number.

It is an amenable number.

51455825553 is a deficient number, since it is larger than the sum of its proper divisors (24981457263).

51455825553 is a wasteful number, since it uses less digits than its factorization.

51455825553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33175964.

The product of its digits is 3000000, while the sum is 48.

The spelling of 51455825553 in words is "fifty-one billion, four hundred fifty-five million, eight hundred twenty-five thousand, five hundred fifty-three".