25897996285 has 32 divisors (see below), whose sum is σ = 36729649152. Its totient is φ = 17154512640.

The previous prime is 25897996283. The next prime is 25897996291. The reversal of 25897996285 is 58269979852.

It is not a de Polignac number, because 25897996285 - 2¹ = 25897996283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25897996283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 582919 + ... + 625771.

It is an arithmetic number, because the mean of its divisors is an integer number (1147801536).

Almost surely, 2^25897996285 is an apocalyptic number.

It is an amenable number.

25897996285 is a deficient number, since it is larger than the sum of its proper divisors (10831652867).

25897996285 is a wasteful number, since it uses less digits than its factorization.

25897996285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43453.

The product of its digits is 195955200, while the sum is 70.

The spelling of 25897996285 in words is "twenty-five billion, eight hundred ninety-seven million, nine hundred ninety-six thousand, two hundred eighty-five".