22252397 has 2 divisors, whose sum is σ = 22252398. Its totient is φ = 22252396.

The previous prime is 22252369. The next prime is 22252409. The reversal of 22252397 is 79325222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17732521 + 4519876 = 4211^2 + 2126^2 .

It is a cyclic number.

It is not a de Polignac number, because 22252397 - 2¹² = 22248301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22252357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11126198 + 11126199.

It is an arithmetic number, because the mean of its divisors is an integer number (11126199).

Almost surely, 2^22252397 is an apocalyptic number.

It is an amenable number.

22252397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22252397 is an equidigital number, since it uses as much as digits as its factorization.

22252397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 32.

The square root of 22252397 is about 4717.2446406774. The cubic root of 22252397 is about 281.2714161799.

The spelling of 22252397 in words is "twenty-two million, two hundred fifty-two thousand, three hundred ninety-seven".