25912951 has 2 divisors, whose sum is σ = 25912952. Its totient is φ = 25912950.

The previous prime is 25912937. The next prime is 25912963. The reversal of 25912951 is 15921952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25912951 - 2¹³ = 25904759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25942951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12956475 + 12956476.

It is an arithmetic number, because the mean of its divisors is an integer number (12956476).

Almost surely, 2^25912951 is an apocalyptic number.

25912951 is the 3220-th centered pentagonal number.

25912951 is a deficient number, since it is larger than the sum of its proper divisors (1).

25912951 is an equidigital number, since it uses as much as digits as its factorization.

25912951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 34.

The square root of 25912951 is about 5090.4765002895. The cubic root of 25912951 is about 295.9186188193.

Subtracting from 25912951 its reverse (15921952), we obtain a palindrome (9990999).

The spelling of 25912951 in words is "twenty-five million, nine hundred twelve thousand, nine hundred fifty-one".