25997253092 has 6 divisors (see below), whose sum is σ = 45495192918. Its totient is φ = 12998626544.

The previous prime is 25997253091. The next prime is 25997253127. The reversal of 25997253092 is 29035279952.

It can be written as a sum of positive squares in only one way, i.e., 25658913856 + 338339236 = 160184^2 + 18394^2 .

It is not an unprimeable number, because it can be changed into a prime (25997253091) 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 as a sum of consecutive naturals, namely, 3249656633 + ... + 3249656640.

It is an arithmetic number, because the mean of its divisors is an integer number (7582532153).

Almost surely, 2^25997253092 is an apocalyptic number.

It is an amenable number.

25997253092 is a deficient number, since it is larger than the sum of its proper divisors (19497939826).

25997253092 is a wasteful number, since it uses less digits than its factorization.

25997253092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6499313277 (or 6499313275 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 53.

The spelling of 25997253092 in words is "twenty-five billion, nine hundred ninety-seven million, two hundred fifty-three thousand, ninety-two".