22525387 has 2 divisors, whose sum is σ = 22525388. Its totient is φ = 22525386.

The previous prime is 22525369. The next prime is 22525397. The reversal of 22525387 is 78352522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22525387 - 2⁷ = 22525259 is a prime.

It is not a weakly prime, because it can be changed into another prime (22525337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11262693 + 11262694.

It is an arithmetic number, because the mean of its divisors is an integer number (11262694).

Almost surely, 2^22525387 is an apocalyptic number.

22525387 is a deficient number, since it is larger than the sum of its proper divisors (1).

22525387 is an equidigital number, since it uses as much as digits as its factorization.

22525387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 34.

The square root of 22525387 is about 4746.0917605963. The cubic root of 22525387 is about 282.4169468961.

The spelling of 22525387 in words is "twenty-two million, five hundred twenty-five thousand, three hundred eighty-seven".