54478622455 has 4 divisors (see below), whose sum is σ = 65374346952. Its totient is φ = 43582897960.

The previous prime is 54478622369. The next prime is 54478622521. The reversal of 54478622455 is 55422687445.

It is a happy number.

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

It is not a de Polignac number, because 54478622455 - 2¹⁵ = 54478589687 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, 5447862241 + ... + 5447862250.

It is an arithmetic number, because the mean of its divisors is an integer number (16343586738).

Almost surely, 2^54478622455 is an apocalyptic number.

54478622455 is a deficient number, since it is larger than the sum of its proper divisors (10895724497).

54478622455 is a wasteful number, since it uses less digits than its factorization.

54478622455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10895724496.

The product of its digits is 10752000, while the sum is 52.

The spelling of 54478622455 in words is "fifty-four billion, four hundred seventy-eight million, six hundred twenty-two thousand, four hundred fifty-five".