25969952833 has 4 divisors (see below), whose sum is σ = 28330857648. Its totient is φ = 23609048020.

The previous prime is 25969952819. The next prime is 25969952843. The reversal of 25969952833 is 33825996952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25969952833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25969952843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180452391 + ... + 1180452412.

It is an arithmetic number, because the mean of its divisors is an integer number (7082714412).

Almost surely, 2^25969952833 is an apocalyptic number.

It is an amenable number.

25969952833 is a deficient number, since it is larger than the sum of its proper divisors (2360904815).

25969952833 is a wasteful number, since it uses less digits than its factorization.

25969952833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360904814.

The product of its digits is 31492800, while the sum is 61.

The spelling of 25969952833 in words is "twenty-five billion, nine hundred sixty-nine million, nine hundred fifty-two thousand, eight hundred thirty-three".