25554123413231 has 24 divisors (see below), whose sum is σ = 30362991575040. Its totient is φ = 21434469896112.

The previous prime is 25554123413177. The next prime is 25554123413233. The reversal of 25554123413231 is 13231432145552.

It is not a de Polignac number, because 25554123413231 - 2⁶ = 25554123413167 is a prime.

It is a super-2 number, since 2×25554123413231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25554123413233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15577130 + ... + 17139288.

It is an arithmetic number, because the mean of its divisors is an integer number (1265124648960).

Almost surely, 2^{25554123413231} is an apocalyptic number.

25554123413231 is a deficient number, since it is larger than the sum of its proper divisors (4808868161809).

25554123413231 is a wasteful number, since it uses less digits than its factorization.

25554123413231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569323 (or 1569316 counting only the distinct ones).

The product of its digits is 432000, while the sum is 41.

Adding to 25554123413231 its reverse (13231432145552), we get a palindrome (38785555558783).

The spelling of 25554123413231 in words is "twenty-five trillion, five hundred fifty-four billion, one hundred twenty-three million, four hundred thirteen thousand, two hundred thirty-one".