25228559 has 2 divisors, whose sum is σ = 25228560. Its totient is φ = 25228558.

The previous prime is 25228543. The next prime is 25228589. The reversal of 25228559 is 95582252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25228559 - 2⁴ = 25228543 is a prime.

It is equal to p_1579295 and since 25228559 and 1579295 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25228529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12614279 + 12614280.

It is an arithmetic number, because the mean of its divisors is an integer number (12614280).

Almost surely, 2^25228559 is an apocalyptic number.

25228559 is a deficient number, since it is larger than the sum of its proper divisors (1).

25228559 is an equidigital number, since it uses as much as digits as its factorization.

25228559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72000, while the sum is 38.

The square root of 25228559 is about 5022.8038982226. The cubic root of 25228559 is about 293.2901527635.

The spelling of 25228559 in words is "twenty-five million, two hundred twenty-eight thousand, five hundred fifty-nine".