625468321 has 4 divisors (see below), whose sum is σ = 625523332. Its totient is φ = 625413312.

The previous prime is 625468303. The next prime is 625468331. The reversal of 625468321 is 123864526.

625468321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 494617600 + 130850721 = 22240^2 + 11439^2 .

It is a cyclic number.

It is not a de Polignac number, because 625468321 - 2⁵ = 625468289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625468331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3420 + ... + 35533.

It is an arithmetic number, because the mean of its divisors is an integer number (156380833).

Almost surely, 2^625468321 is an apocalyptic number.

It is an amenable number.

625468321 is a deficient number, since it is larger than the sum of its proper divisors (55011).

625468321 is a wasteful number, since it uses less digits than its factorization.

625468321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55010.

The product of its digits is 69120, while the sum is 37.

The square root of 625468321 is about 25009.3646660606. The cubic root of 625468321 is about 855.2014713936.

The spelling of 625468321 in words is "six hundred twenty-five million, four hundred sixty-eight thousand, three hundred twenty-one".