625822813 has 64 divisors (see below), whose sum is σ = 846028800. Its totient is φ = 448842240.

The previous prime is 625822787. The next prime is 625822837. The reversal of 625822813 is 318228526.

625822813 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 625822813 - 2¹³ = 625814621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625822013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7031673 + ... + 7031761.

It is an arithmetic number, because the mean of its divisors is an integer number (13219200).

Almost surely, 2^625822813 is an apocalyptic number.

It is an amenable number.

625822813 is a deficient number, since it is larger than the sum of its proper divisors (220205987).

625822813 is a wasteful number, since it uses less digits than its factorization.

625822813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250.

The product of its digits is 46080, while the sum is 37.

The square root of 625822813 is about 25016.4508473924. The cubic root of 625822813 is about 855.3630062597.

The spelling of 625822813 in words is "six hundred twenty-five million, eight hundred twenty-two thousand, eight hundred thirteen".