25258513287 has 12 divisors (see below), whose sum is σ = 39176469816. Its totient is φ = 14433436080.

The previous prime is 25258513279. The next prime is 25258513331. The reversal of 25258513287 is 78231585252.

It is not a de Polignac number, because 25258513287 - 2³ = 25258513279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25258513387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85913164 + ... + 85913457.

It is an arithmetic number, because the mean of its divisors is an integer number (3264705818).

Almost surely, 2^25258513287 is an apocalyptic number.

25258513287 is a deficient number, since it is larger than the sum of its proper divisors (13917956529).

25258513287 is a wasteful number, since it uses less digits than its factorization.

25258513287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171826638 (or 171826631 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 48.

The spelling of 25258513287 in words is "twenty-five billion, two hundred fifty-eight million, five hundred thirteen thousand, two hundred eighty-seven".