25026731287 has 2 divisors, whose sum is σ = 25026731288. Its totient is φ = 25026731286.

The previous prime is 25026731269. The next prime is 25026731297. The reversal of 25026731287 is 78213762052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25026731287 - 2¹⁵ = 25026698519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25026731207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12513365643 + 12513365644.

It is an arithmetic number, because the mean of its divisors is an integer number (12513365644).

Almost surely, 2^25026731287 is an apocalyptic number.

25026731287 is a deficient number, since it is larger than the sum of its proper divisors (1).

25026731287 is an equidigital number, since it uses as much as digits as its factorization.

25026731287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 25026731287 in words is "twenty-five billion, twenty-six million, seven hundred thirty-one thousand, two hundred eighty-seven".