22825399 has 2 divisors, whose sum is σ = 22825400. Its totient is φ = 22825398.

The previous prime is 22825381. The next prime is 22825423. The reversal of 22825399 is 99352822.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22825399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22825199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11412699 + 11412700.

It is an arithmetic number, because the mean of its divisors is an integer number (11412700).

Almost surely, 2^22825399 is an apocalyptic number.

22825399 is a deficient number, since it is larger than the sum of its proper divisors (1).

22825399 is an equidigital number, since it uses as much as digits as its factorization.

22825399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 40.

The square root of 22825399 is about 4777.5934318441. The cubic root of 22825399 is about 283.6652431750.

The spelling of 22825399 in words is "twenty-two million, eight hundred twenty-five thousand, three hundred ninety-nine".