25371287 has 2 divisors, whose sum is σ = 25371288. Its totient is φ = 25371286.

The previous prime is 25371271. The next prime is 25371343. The reversal of 25371287 is 78217352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25371287 - 2⁴ = 25371271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25371217) 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, 12685643 + 12685644.

It is an arithmetic number, because the mean of its divisors is an integer number (12685644).

Almost surely, 2^25371287 is an apocalyptic number.

25371287 is a deficient number, since it is larger than the sum of its proper divisors (1).

25371287 is an equidigital number, since it uses as much as digits as its factorization.

25371287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 35.

The square root of 25371287 is about 5036.9918602277. The cubic root of 25371287 is about 293.8421993969.

The spelling of 25371287 in words is "twenty-five million, three hundred seventy-one thousand, two hundred eighty-seven".