22445597 has 2 divisors, whose sum is σ = 22445598. Its totient is φ = 22445596.

The previous prime is 22445561. The next prime is 22445611. The reversal of 22445597 is 79554422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21771556 + 674041 = 4666^2 + 821^2 .

It is a cyclic number.

It is not a de Polignac number, because 22445597 - 2¹² = 22441501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22445597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22445537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11222798 + 11222799.

It is an arithmetic number, because the mean of its divisors is an integer number (11222799).

Almost surely, 2^22445597 is an apocalyptic number.

It is an amenable number.

22445597 is a deficient number, since it is larger than the sum of its proper divisors (1).

22445597 is an equidigital number, since it uses as much as digits as its factorization.

22445597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 38.

The square root of 22445597 is about 4737.6784399113. The cubic root of 22445597 is about 282.0830908848.

The spelling of 22445597 in words is "twenty-two million, four hundred forty-five thousand, five hundred ninety-seven".