625188968 has 8 divisors (see below), whose sum is σ = 1172229330. Its totient is φ = 312594480.

The previous prime is 625188961. The next prime is 625188979. The reversal of 625188968 is 869881526.

It can be written as a sum of positive squares in only one way, i.e., 530749444 + 94439524 = 23038^2 + 9718^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×625188968² = 781722491417810048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (625188961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39074303 + ... + 39074318.

Almost surely, 2^625188968 is an apocalyptic number.

It is an amenable number.

625188968 is a deficient number, since it is larger than the sum of its proper divisors (547040362).

625188968 is a wasteful number, since it uses less digits than its factorization.

625188968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78148627 (or 78148623 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 53.

The square root of 625188968 is about 25003.7790743719. The cubic root of 625188968 is about 855.0741328514.

The spelling of 625188968 in words is "six hundred twenty-five million, one hundred eighty-eight thousand, nine hundred sixty-eight".