22373257 has 2 divisors, whose sum is σ = 22373258. Its totient is φ = 22373256.

The previous prime is 22373251. The next prime is 22373291. The reversal of 22373257 is 75237322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16128256 + 6245001 = 4016^2 + 2499^2 .

It is a cyclic number.

It is not a de Polignac number, because 22373257 - 2⁷ = 22373129 is a prime.

It is not a weakly prime, because it can be changed into another prime (22373251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11186628 + 11186629.

It is an arithmetic number, because the mean of its divisors is an integer number (11186629).

Almost surely, 2^22373257 is an apocalyptic number.

It is an amenable number.

22373257 is a deficient number, since it is larger than the sum of its proper divisors (1).

22373257 is an equidigital number, since it uses as much as digits as its factorization.

22373257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 31.

The square root of 22373257 is about 4730.0377376930. The cubic root of 22373257 is about 281.7797225195.

The spelling of 22373257 in words is "twenty-two million, three hundred seventy-three thousand, two hundred fifty-seven".