22501607 has 2 divisors, whose sum is σ = 22501608. Its totient is φ = 22501606.

The previous prime is 22501601. The next prime is 22501631. The reversal of 22501607 is 70610522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22501607 - 2⁶ = 22501543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22501601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11250803 + 11250804.

It is an arithmetic number, because the mean of its divisors is an integer number (11250804).

Almost surely, 2^22501607 is an apocalyptic number.

22501607 is a deficient number, since it is larger than the sum of its proper divisors (1).

22501607 is an equidigital number, since it uses as much as digits as its factorization.

22501607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 22501607 is about 4743.5858799014. The cubic root of 22501607 is about 282.3175295927.

The spelling of 22501607 in words is "twenty-two million, five hundred one thousand, six hundred seven".