55451615455 has 4 divisors (see below), whose sum is σ = 66541938552. Its totient is φ = 44361292360.

The previous prime is 55451615447. The next prime is 55451615489.

55451615455 is nontrivially palindromic in base 10.

55451615455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55451615455 - 2³ = 55451615447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5545161541 + ... + 5545161550.

It is an arithmetic number, because the mean of its divisors is an integer number (16635484638).

Almost surely, 2^55451615455 is an apocalyptic number.

55451615455 is a deficient number, since it is larger than the sum of its proper divisors (11090323097).

55451615455 is a wasteful number, since it uses less digits than its factorization.

55451615455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11090323096.

The product of its digits is 1500000, while the sum is 46.

The spelling of 55451615455 in words is "fifty-five billion, four hundred fifty-one million, six hundred fifteen thousand, four hundred fifty-five".