25954613 has 2 divisors, whose sum is σ = 25954614. Its totient is φ = 25954612.

The previous prime is 25954601. The next prime is 25954633. The reversal of 25954613 is 31645952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16176484 + 9778129 = 4022^2 + 3127^2 .

It is a cyclic number.

It is not a de Polignac number, because 25954613 - 2⁶ = 25954549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25954633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12977306 + 12977307.

It is an arithmetic number, because the mean of its divisors is an integer number (12977307).

Almost surely, 2^25954613 is an apocalyptic number.

It is an amenable number.

25954613 is a deficient number, since it is larger than the sum of its proper divisors (1).

25954613 is an equidigital number, since it uses as much as digits as its factorization.

25954613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 35.

The square root of 25954613 is about 5094.5670080979. The cubic root of 25954613 is about 296.0771233477.

It can be divided in two parts, 259 and 54613, that added together give a cube (54872 = 38³).

The spelling of 25954613 in words is "twenty-five million, nine hundred fifty-four thousand, six hundred thirteen".