25562387 has 2 divisors, whose sum is σ = 25562388. Its totient is φ = 25562386.

The previous prime is 25562359. The next prime is 25562417. The reversal of 25562387 is 78326552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25562387 - 2¹⁶ = 25496851 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25562387.

It is not a weakly prime, because it can be changed into another prime (25562347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12781193 + 12781194.

It is an arithmetic number, because the mean of its divisors is an integer number (12781194).

Almost surely, 2^25562387 is an apocalyptic number.

25562387 is a deficient number, since it is larger than the sum of its proper divisors (1).

25562387 is an equidigital number, since it uses as much as digits as its factorization.

25562387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 38.

The square root of 25562387 is about 5055.9259290460. The cubic root of 25562387 is about 294.5781080204.

The spelling of 25562387 in words is "twenty-five million, five hundred sixty-two thousand, three hundred eighty-seven".