625484891 has 8 divisors (see below), whose sum is σ = 629959680. Its totient is φ = 621021352.

The previous prime is 625484887. The next prime is 625484897. The reversal of 625484891 is 198484526.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 625484891 - 2² = 625484887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625484897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130646 + ... + 135348.

It is an arithmetic number, because the mean of its divisors is an integer number (78744960).

Almost surely, 2^625484891 is an apocalyptic number.

625484891 is a deficient number, since it is larger than the sum of its proper divisors (4474789).

625484891 is a wasteful number, since it uses less digits than its factorization.

625484891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5625.

The product of its digits is 552960, while the sum is 47.

The square root of 625484891 is about 25009.6959397750. The cubic root of 625484891 is about 855.2090233686.

The spelling of 625484891 in words is "six hundred twenty-five million, four hundred eighty-four thousand, eight hundred ninety-one".