625325616 has 80 divisors (see below), whose sum is σ = 1798679520. Its totient is φ = 208005120.

The previous prime is 625325611. The next prime is 625325629. The reversal of 625325616 is 616523526.

It is a happy number.

625325616 is a `hidden beast` number, since 6 + 2 + 5 + 32 + 5 + 616 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (625325611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254956 + ... + 257396.

It is an arithmetic number, because the mean of its divisors is an integer number (22483494).

Almost surely, 2^625325616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625325616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (899339760).

625325616 is an abundant number, since it is smaller than the sum of its proper divisors (1173353904).

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

625325616 is a wasteful number, since it uses less digits than its factorization.

625325616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051 (or 3039 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 625325616 is about 25006.5114720146. The cubic root of 625325616 is about 855.1364263681.

The spelling of 625325616 in words is "six hundred twenty-five million, three hundred twenty-five thousand, six hundred sixteen".