8625664554 has 32 divisors (see below), whose sum is σ = 18855654720. Its totient is φ = 2614436352.

The previous prime is 8625664547. The next prime is 8625664571. The reversal of 8625664554 is 4554665268.

It is a junction number, because it is equal to n+sod(n) for n = 8625664497 and 8625664506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 820039 + ... + 830490.

It is an arithmetic number, because the mean of its divisors is an integer number (589239210).

Almost surely, 2^8625664554 is an apocalyptic number.

8625664554 is an abundant number, since it is smaller than the sum of its proper divisors (10229990166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8625664554 is a wasteful number, since it uses less digits than its factorization.

8625664554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650614.

The product of its digits is 6912000, while the sum is 51.

The square root of 8625664554 is about 92874.4558745837. The cubic root of 8625664554 is about 2050.8356342626.

The spelling of 8625664554 in words is "eight billion, six hundred twenty-five million, six hundred sixty-four thousand, five hundred fifty-four".