25951213 has 2 divisors, whose sum is σ = 25951214. Its totient is φ = 25951212.

The previous prime is 25951157. The next prime is 25951217. The reversal of 25951213 is 31215952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16104169 + 9847044 = 4013^2 + 3138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25951213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25951217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12975606 + 12975607.

It is an arithmetic number, because the mean of its divisors is an integer number (12975607).

Almost surely, 2^25951213 is an apocalyptic number.

It is an amenable number.

25951213 is a deficient number, since it is larger than the sum of its proper divisors (1).

25951213 is an equidigital number, since it uses as much as digits as its factorization.

25951213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 28.

The square root of 25951213 is about 5094.2333083596. The cubic root of 25951213 is about 296.0641942886.

The spelling of 25951213 in words is "twenty-five million, nine hundred fifty-one thousand, two hundred thirteen".