478625555 has 16 divisors (see below), whose sum is σ = 591162624. Its totient is φ = 371854560.

The previous prime is 478625551. The next prime is 478625557. The reversal of 478625555 is 555526874.

It is not a de Polignac number, because 478625555 - 2² = 478625551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478625551) 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, 13724 + ... + 33846.

It is an arithmetic number, because the mean of its divisors is an integer number (36947664).

Almost surely, 2^478625555 is an apocalyptic number.

478625555 is a deficient number, since it is larger than the sum of its proper divisors (112537069).

478625555 is a wasteful number, since it uses less digits than its factorization.

478625555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20266.

The product of its digits is 1680000, while the sum is 47.

The square root of 478625555 is about 21877.5125414202. The cubic root of 478625555 is about 782.2254845872.

The spelling of 478625555 in words is "four hundred seventy-eight million, six hundred twenty-five thousand, five hundred fifty-five".