625422399 has 16 divisors (see below), whose sum is σ = 959985408. Its totient is φ = 354773952.

The previous prime is 625422397. The next prime is 625422407. The reversal of 625422399 is 993224526.

625422399 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 625422399 - 2¹ = 625422397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 625422399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625422397) 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, 105817 + ... + 111570.

It is an arithmetic number, because the mean of its divisors is an integer number (59999088).

Almost surely, 2^625422399 is an apocalyptic number.

625422399 is a deficient number, since it is larger than the sum of its proper divisors (334563009).

625422399 is a wasteful number, since it uses less digits than its factorization.

625422399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217534.

The product of its digits is 233280, while the sum is 42.

The square root of 625422399 is about 25008.4465531148. The cubic root of 625422399 is about 855.1805411979.

The spelling of 625422399 in words is "six hundred twenty-five million, four hundred twenty-two thousand, three hundred ninety-nine".