25852816879 has 2 divisors, whose sum is σ = 25852816880. Its totient is φ = 25852816878.

The previous prime is 25852816831. The next prime is 25852816903. The reversal of 25852816879 is 97861825852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25852816879 - 2⁷ = 25852816751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25852816579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12926408439 + 12926408440.

It is an arithmetic number, because the mean of its divisors is an integer number (12926408440).

Almost surely, 2^25852816879 is an apocalyptic number.

25852816879 is a deficient number, since it is larger than the sum of its proper divisors (1).

25852816879 is an equidigital number, since it uses as much as digits as its factorization.

25852816879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19353600, while the sum is 61.

The spelling of 25852816879 in words is "twenty-five billion, eight hundred fifty-two million, eight hundred sixteen thousand, eight hundred seventy-nine".