625040324641 has 4 divisors (see below), whose sum is σ = 625063137984. Its totient is φ = 625017511300.

The previous prime is 625040324633. The next prime is 625040324677. The reversal of 625040324641 is 146423040526.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 625040324641 - 2³ = 625040324633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 625040324641.

It is not an unprimeable number, because it can be changed into a prime (625040324611) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11365525 + ... + 11420386.

It is an arithmetic number, because the mean of its divisors is an integer number (156265784496).

Almost surely, 2^625040324641 is an apocalyptic number.

It is an amenable number.

625040324641 is a deficient number, since it is larger than the sum of its proper divisors (22813343).

625040324641 is a wasteful number, since it uses less digits than its factorization.

625040324641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22813342.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 625040324641 in words is "six hundred twenty-five billion, forty million, three hundred twenty-four thousand, six hundred forty-one".