625319378125 has 24 divisors (see below), whose sum is σ = 841722266952. Its totient is φ = 461774280000.

The previous prime is 625319378111. The next prime is 625319378153. The reversal of 625319378125 is 521873913526.

It can be written as a sum of positive squares in 12 ways, for example, as 608172261316 + 17147116809 = 779854^2 + 130947^2 .

It is not a de Polignac number, because 625319378125 - 2²⁵ = 625285823693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7655614 + ... + 7736863.

It is an arithmetic number, because the mean of its divisors is an integer number (35071761123).

Almost surely, 2^625319378125 is an apocalyptic number.

625319378125 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

625319378125 is a deficient number, since it is larger than the sum of its proper divisors (216402888827).

625319378125 is an equidigital number, since it uses as much as digits as its factorization.

625319378125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15392515 (or 15392495 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 52.

The spelling of 625319378125 in words is "six hundred twenty-five billion, three hundred nineteen million, three hundred seventy-eight thousand, one hundred twenty-five".