22052491 has 2 divisors, whose sum is σ = 22052492. Its totient is φ = 22052490.

The previous prime is 22052477. The next prime is 22052533. The reversal of 22052491 is 19425022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22052491 - 2⁹ = 22051979 is a prime.

It is not a weakly prime, because it can be changed into another prime (22052431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11026245 + 11026246.

It is an arithmetic number, because the mean of its divisors is an integer number (11026246).

Almost surely, 2^22052491 is an apocalyptic number.

22052491 is a deficient number, since it is larger than the sum of its proper divisors (1).

22052491 is an equidigital number, since it uses as much as digits as its factorization.

22052491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 22052491 is about 4696.0079855128. The cubic root of 22052491 is about 280.4266073450.

The spelling of 22052491 in words is "twenty-two million, fifty-two thousand, four hundred ninety-one".