622525321 has 8 divisors (see below), whose sum is σ = 679436064. Its totient is φ = 565667520.

The previous prime is 622525303. The next prime is 622525361. The reversal of 622525321 is 123525226.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 622525321 - 2⁹ = 622524809 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 622525321.

It is not an unprimeable number, because it can be changed into a prime (622525301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13761 + ... + 37873.

It is an arithmetic number, because the mean of its divisors is an integer number (84929508).

Almost surely, 2^622525321 is an apocalyptic number.

It is an amenable number.

622525321 is a deficient number, since it is larger than the sum of its proper divisors (56910743).

622525321 is a wasteful number, since it uses less digits than its factorization.

622525321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26471.

The product of its digits is 7200, while the sum is 28.

The square root of 622525321 is about 24950.4573304779. The cubic root of 622525321 is about 853.8580429580.

The spelling of 622525321 in words is "six hundred twenty-two million, five hundred twenty-five thousand, three hundred twenty-one".