622325561 has 16 divisors (see below), whose sum is σ = 734868288. Its totient is φ = 519556800.

The previous prime is 622325531. The next prime is 622325573. The reversal of 622325561 is 165523226.

It is a cyclic number.

It is not a de Polignac number, because 622325561 - 2⁶ = 622325497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (622325521) 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, 17126 + ... + 39216.

It is an arithmetic number, because the mean of its divisors is an integer number (45929268).

Almost surely, 2^622325561 is an apocalyptic number.

It is an amenable number.

622325561 is a deficient number, since it is larger than the sum of its proper divisors (112542727).

622325561 is a wasteful number, since it uses less digits than its factorization.

622325561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22312.

The product of its digits is 21600, while the sum is 32.

The square root of 622325561 is about 24946.4538762526. The cubic root of 622325561 is about 853.7667026680.

Adding to 622325561 its reverse (165523226), we get a palindrome (787848787).

The spelling of 622325561 in words is "six hundred twenty-two million, three hundred twenty-five thousand, five hundred sixty-one".