620725250 has 64 divisors (see below), whose sum is σ = 1295274240. Its totient is φ = 221356800.

The previous prime is 620725187. The next prime is 620725331. The reversal of 620725250 is 52527026.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 76907 + ... + 84593.

It is an arithmetic number, because the mean of its divisors is an integer number (20238660).

Almost surely, 2^620725250 is an apocalyptic number.

620725250 is an abundant number, since it is smaller than the sum of its proper divisors (674548990).

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

620725250 is a wasteful number, since it uses less digits than its factorization.

620725250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7740 (or 7730 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 620725250 is about 24914.3583100187. The cubic root of 620725250 is about 853.0342537441.

The spelling of 620725250 in words is "six hundred twenty million, seven hundred twenty-five thousand, two hundred fifty".