25225795089899 has 4 divisors (see below), whose sum is σ = 25287471850920. Its totient is φ = 25164118328880.

The previous prime is 25225795089893. The next prime is 25225795089959. The reversal of 25225795089899 is 99898059752252.

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 25225795089899 - 2²⁰ = 25225794041323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25225795089893) 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, 30838379897 + ... + 30838380714.

It is an arithmetic number, because the mean of its divisors is an integer number (6321867962730).

Almost surely, 2^{25225795089899} is an apocalyptic number.

25225795089899 is a deficient number, since it is larger than the sum of its proper divisors (61676761021).

25225795089899 is an equidigital number, since it uses as much as digits as its factorization.

25225795089899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61676761020.

The product of its (nonzero) digits is 2939328000, while the sum is 80.

The spelling of 25225795089899 in words is "twenty-five trillion, two hundred twenty-five billion, seven hundred ninety-five million, eighty-nine thousand, eight hundred ninety-nine".