25358779 has 2 divisors, whose sum is σ = 25358780. Its totient is φ = 25358778.

The previous prime is 25358771. The next prime is 25358791. The reversal of 25358779 is 97785352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25358779 - 2³ = 25358771 is a prime.

It is not a weakly prime, because it can be changed into another prime (25358771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12679389 + 12679390.

It is an arithmetic number, because the mean of its divisors is an integer number (12679390).

Almost surely, 2^25358779 is an apocalyptic number.

25358779 is a deficient number, since it is larger than the sum of its proper divisors (1).

25358779 is an equidigital number, since it uses as much as digits as its factorization.

25358779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 46.

The square root of 25358779 is about 5035.7500930844. The cubic root of 25358779 is about 293.7939035631.

The spelling of 25358779 in words is "twenty-five million, three hundred fifty-eight thousand, seven hundred seventy-nine".