625375821 has 16 divisors (see below), whose sum is σ = 1009010304. Its totient is φ = 336336384.

The previous prime is 625375799. The next prime is 625375831. The reversal of 625375821 is 128573526.

625375821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 625375821 - 2¹¹ = 625373773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 625375821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625375831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 875520 + ... + 876233.

It is an arithmetic number, because the mean of its divisors is an integer number (63063144).

Almost surely, 2^625375821 is an apocalyptic number.

It is an amenable number.

625375821 is a deficient number, since it is larger than the sum of its proper divisors (383634483).

625375821 is a wasteful number, since it uses less digits than its factorization.

625375821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751780.

The product of its digits is 100800, while the sum is 39.

The square root of 625375821 is about 25007.5152904082. The cubic root of 625375821 is about 855.1593109658.

The spelling of 625375821 in words is "six hundred twenty-five million, three hundred seventy-five thousand, eight hundred twenty-one".