620916250 has 20 divisors (see below), whose sum is σ = 1163847762. Its totient is φ = 248366000.

The previous prime is 620916217. The next prime is 620916251. The reversal of 620916250 is 52619026.

It can be written as a sum of positive squares in 5 ways, for example, as 1951609 + 618964641 = 1397^2 + 24879^2 .

It is not an unprimeable number, because it can be changed into a prime (620916251) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 247117 + ... + 249616.

Almost surely, 2^620916250 is an apocalyptic number.

620916250 is a deficient number, since it is larger than the sum of its proper divisors (542931512).

620916250 is an equidigital number, since it uses as much as digits as its factorization.

620916250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496755 (or 496740 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 620916250 is about 24918.1911462289. The cubic root of 620916250 is about 853.1217389527.

The spelling of 620916250 in words is "six hundred twenty million, nine hundred sixteen thousand, two hundred fifty".