625668982 has 16 divisors (see below), whose sum is σ = 959313600. Its totient is φ = 305909568.

The previous prime is 625668973. The next prime is 625669027. The reversal of 625668982 is 289866526.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143458 + ... + 147754.

It is an arithmetic number, because the mean of its divisors is an integer number (59957100).

Almost surely, 2^625668982 is an apocalyptic number.

625668982 is a deficient number, since it is larger than the sum of its proper divisors (333644618).

625668982 is a wasteful number, since it uses less digits than its factorization.

625668982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895.

The product of its digits is 2488320, while the sum is 52.

The square root of 625668982 is about 25013.3760616195. The cubic root of 625668982 is about 855.2929160646.

The spelling of 625668982 in words is "six hundred twenty-five million, six hundred sixty-eight thousand, nine hundred eighty-two".