22650493 has 2 divisors, whose sum is σ = 22650494. Its totient is φ = 22650492.

The previous prime is 22650461. The next prime is 22650497. The reversal of 22650493 is 39405622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12652249 + 9998244 = 3557^2 + 3162^2 .

It is a cyclic number.

It is not a de Polignac number, because 22650493 - 2⁵ = 22650461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22650497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11325246 + 11325247.

It is an arithmetic number, because the mean of its divisors is an integer number (11325247).

Almost surely, 2^22650493 is an apocalyptic number.

It is an amenable number.

22650493 is a deficient number, since it is larger than the sum of its proper divisors (1).

22650493 is an equidigital number, since it uses as much as digits as its factorization.

22650493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 22650493 is about 4759.2534078361. The cubic root of 22650493 is about 282.9388298162.

The spelling of 22650493 in words is "twenty-two million, six hundred fifty thousand, four hundred ninety-three".