620168125 has 10 divisors (see below), whose sum is σ = 774962870. Its totient is φ = 496134000.

The previous prime is 620168117. The next prime is 620168183. The reversal of 620168125 is 521861026.

It can be written as a sum of positive squares in 5 ways, for example, as 427124889 + 193043236 = 20667^2 + 13894^2 .

It is not a de Polignac number, because 620168125 - 2³ = 620168117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 495510 + ... + 496759.

It is an arithmetic number, because the mean of its divisors is an integer number (77496287).

Almost surely, 2^620168125 is an apocalyptic number.

It is an amenable number.

620168125 is a deficient number, since it is larger than the sum of its proper divisors (154794745).

620168125 is an frugal number, since it uses more digits than its factorization.

620168125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992289 (or 992274 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 620168125 is about 24903.1749983812. The cubic root of 620168125 is about 852.7789669036.

The spelling of 620168125 in words is "six hundred twenty million, one hundred sixty-eight thousand, one hundred twenty-five".