22325491 has 2 divisors, whose sum is σ = 22325492. Its totient is φ = 22325490.

The previous prime is 22325461. The next prime is 22325497. The reversal of 22325491 is 19452322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22325491 - 2⁹ = 22324979 is a prime.

It is a super-3 number, since 3×22325491³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22325497) 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, 11162745 + 11162746.

It is an arithmetic number, because the mean of its divisors is an integer number (11162746).

Almost surely, 2^22325491 is an apocalyptic number.

22325491 is a deficient number, since it is larger than the sum of its proper divisors (1).

22325491 is an equidigital number, since it uses as much as digits as its factorization.

22325491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 22325491 is about 4724.9858200845. The cubic root of 22325491 is about 281.5790502006.

The spelling of 22325491 in words is "twenty-two million, three hundred twenty-five thousand, four hundred ninety-one".