25379251 has 2 divisors, whose sum is σ = 25379252. Its totient is φ = 25379250.

The previous prime is 25379239. The next prime is 25379257. The reversal of 25379251 is 15297352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25379251 - 2⁵ = 25379219 is a prime.

It is a pancake number, because a pancake can be divided into 25379251 parts by 7124 straight cuts.

It is equal to p_1588084 and since 25379251 and 1588084 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (25379257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12689625 + 12689626.

It is an arithmetic number, because the mean of its divisors is an integer number (12689626).

Almost surely, 2^25379251 is an apocalyptic number.

25379251 is a deficient number, since it is larger than the sum of its proper divisors (1).

25379251 is an equidigital number, since it uses as much as digits as its factorization.

25379251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 34.

The square root of 25379251 is about 5037.7823494073. The cubic root of 25379251 is about 293.8729416879.

The spelling of 25379251 in words is "twenty-five million, three hundred seventy-nine thousand, two hundred fifty-one".