25898791 has 2 divisors, whose sum is σ = 25898792. Its totient is φ = 25898790.

The previous prime is 25898749. The next prime is 25898797. The reversal of 25898791 is 19789852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25898791 - 2¹¹ = 25896743 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25898797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12949395 + 12949396.

It is an arithmetic number, because the mean of its divisors is an integer number (12949396).

Almost surely, 2^25898791 is an apocalyptic number.

25898791 is a deficient number, since it is larger than the sum of its proper divisors (1).

25898791 is an equidigital number, since it uses as much as digits as its factorization.

25898791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 49.

The square root of 25898791 is about 5089.0854777651. The cubic root of 25898791 is about 295.8647079246.

The spelling of 25898791 in words is "twenty-five million, eight hundred ninety-eight thousand, seven hundred ninety-one".