25955485799 has 4 divisors (see below), whose sum is σ = 26071878336. Its totient is φ = 25839093264.

The previous prime is 25955485783. The next prime is 25955485841. The reversal of 25955485799 is 99758455952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25955485799 - 2⁴ = 25955485783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25955785799) 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, 58195934 + ... + 58196379.

It is an arithmetic number, because the mean of its divisors is an integer number (6517969584).

Almost surely, 2^25955485799 is an apocalyptic number.

25955485799 is a deficient number, since it is larger than the sum of its proper divisors (116392537).

25955485799 is a wasteful number, since it uses less digits than its factorization.

25955485799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116392536.

The product of its digits is 204120000, while the sum is 68.

The spelling of 25955485799 in words is "twenty-five billion, nine hundred fifty-five million, four hundred eighty-five thousand, seven hundred ninety-nine".