625103640 has 96 divisors (see below), whose sum is σ = 2321822880. Its totient is φ = 142880256.

The previous prime is 625103639. The next prime is 625103681. The reversal of 625103640 is 46301526.

625103640 is a `hidden beast` number, since 6 + 2 + 5 + 10 + 3 + 640 = 666.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 121509 + ... + 126548.

It is an arithmetic number, because the mean of its divisors is an integer number (24185655).

Almost surely, 2^625103640 is an apocalyptic number.

625103640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

625103640 is an abundant number, since it is smaller than the sum of its proper divisors (1696719240).

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

625103640 is a wasteful number, since it uses less digits than its factorization.

625103640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248081 (or 248074 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 625103640 is about 25002.0727140771. The cubic root of 625103640 is about 855.0352299016.

The spelling of 625103640 in words is "six hundred twenty-five million, one hundred three thousand, six hundred forty".