625475407455 has 24 divisors (see below), whose sum is σ = 1084700421792. Its totient is φ = 333419792064.

The previous prime is 625475407433. The next prime is 625475407483. The reversal of 625475407455 is 554704574526.

625475407455 is a `hidden beast` number, since 6 + 2 + 5 + 47 + 540 + 7 + 4 + 55 = 666.

It is not a de Polignac number, because 625475407455 - 2²⁰ = 625474358879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3390219 + ... + 3569948.

It is an arithmetic number, because the mean of its divisors is an integer number (45195850908).

Almost surely, 2^625475407455 is an apocalyptic number.

625475407455 is a deficient number, since it is larger than the sum of its proper divisors (459225014337).

625475407455 is a wasteful number, since it uses less digits than its factorization.

625475407455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6962175 (or 6962172 counting only the distinct ones).

The product of its (nonzero) digits is 23520000, while the sum is 54.

The spelling of 625475407455 in words is "six hundred twenty-five billion, four hundred seventy-five million, four hundred seven thousand, four hundred fifty-five".