22513769 has 2 divisors, whose sum is σ = 22513770. Its totient is φ = 22513768.

The previous prime is 22513741. The next prime is 22513783. The reversal of 22513769 is 96731522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21270544 + 1243225 = 4612^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 22513769 - 2²⁴ = 5736553 is a prime.

It is a super-2 number, since 2×22513769² = 1013739589170722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22513789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11256884 + 11256885.

It is an arithmetic number, because the mean of its divisors is an integer number (11256885).

Almost surely, 2^22513769 is an apocalyptic number.

It is an amenable number.

22513769 is a deficient number, since it is larger than the sum of its proper divisors (1).

22513769 is an equidigital number, since it uses as much as digits as its factorization.

22513769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 35.

The square root of 22513769 is about 4744.8676483122. The cubic root of 22513769 is about 282.3683841439.

The spelling of 22513769 in words is "twenty-two million, five hundred thirteen thousand, seven hundred sixty-nine".