18255434500025 has 48 divisors (see below), whose sum is σ = 23102254182528. Its totient is φ = 14306689152000.

The previous prime is 18255434500021. The next prime is 18255434500027. The reversal of 18255434500025 is 52000543455281.

It is not a de Polignac number, because 18255434500025 - 2² = 18255434500021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18255434500021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2041762055 + ... + 2041770995.

It is an arithmetic number, because the mean of its divisors is an integer number (481296962136).

Almost surely, 2^{18255434500025} is an apocalyptic number.

It is an amenable number.

18255434500025 is a deficient number, since it is larger than the sum of its proper divisors (4846819682503).

18255434500025 is a wasteful number, since it uses less digits than its factorization.

18255434500025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16242 (or 16237 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 44.

The spelling of 18255434500025 in words is "eighteen trillion, two hundred fifty-five billion, four hundred thirty-four million, five hundred thousand, twenty-five".