622491325 has 6 divisors (see below), whose sum is σ = 771889274. Its totient is φ = 497993040.

The previous prime is 622491301. The next prime is 622491361. The reversal of 622491325 is 523194226.

It can be written as a sum of positive squares in 3 ways, for example, as 4372281 + 618119044 = 2091^2 + 24862^2 .

It is not a de Polignac number, because 622491325 - 2⁷ = 622491197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 12449802 + ... + 12449851.

Almost surely, 2^622491325 is an apocalyptic number.

It is an amenable number.

622491325 is a deficient number, since it is larger than the sum of its proper divisors (149397949).

622491325 is a wasteful number, since it uses less digits than its factorization.

622491325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24899663 (or 24899658 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 622491325 is about 24949.7760510991. The cubic root of 622491325 is about 853.8424996618.

The spelling of 622491325 in words is "six hundred twenty-two million, four hundred ninety-one thousand, three hundred twenty-five".