22752491 has 2 divisors, whose sum is σ = 22752492. Its totient is φ = 22752490.

The previous prime is 22752487. The next prime is 22752517. The reversal of 22752491 is 19425722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22752491 - 2² = 22752487 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (22752091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11376245 + 11376246.

It is an arithmetic number, because the mean of its divisors is an integer number (11376246).

Almost surely, 2^22752491 is an apocalyptic number.

22752491 is a deficient number, since it is larger than the sum of its proper divisors (1).

22752491 is an equidigital number, since it uses as much as digits as its factorization.

22752491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 22752491 is about 4769.9571276899. The cubic root of 22752491 is about 283.3628968767.

The spelling of 22752491 in words is "twenty-two million, seven hundred fifty-two thousand, four hundred ninety-one".