25591301 has 2 divisors, whose sum is σ = 25591302. Its totient is φ = 25591300.

The previous prime is 25591283. The next prime is 25591303. The reversal of 25591301 is 10319552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25260676 + 330625 = 5026^2 + 575^2 .

It is a cyclic number.

It is not a de Polignac number, because 25591301 - 2¹⁰ = 25590277 is a prime.

It is a Sophie Germain prime.

Together with 25591303, it forms a pair of twin primes.

It is a Chen 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 (25591303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12795650 + 12795651.

It is an arithmetic number, because the mean of its divisors is an integer number (12795651).

Almost surely, 2^25591301 is an apocalyptic number.

It is an amenable number.

25591301 is a deficient number, since it is larger than the sum of its proper divisors (1).

25591301 is an equidigital number, since it uses as much as digits as its factorization.

25591301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 25591301 is about 5058.7845378114. The cubic root of 25591301 is about 294.6891334114.

The spelling of 25591301 in words is "twenty-five million, five hundred ninety-one thousand, three hundred one".