25544258355 has 96 divisors (see below), whose sum is σ = 53654711040. Its totient is φ = 10249639680.

The previous prime is 25544258339. The next prime is 25544258359. The reversal of 25544258355 is 55385244552.

It is not a de Polignac number, because 25544258355 - 2⁴ = 25544258339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25544258359) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 179992 + ... + 288938.

It is an arithmetic number, because the mean of its divisors is an integer number (558903240).

Almost surely, 2^25544258355 is an apocalyptic number.

25544258355 is an abundant number, since it is smaller than the sum of its proper divisors (28110452685).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25544258355 is a wasteful number, since it uses less digits than its factorization.

25544258355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109009 (or 109002 counting only the distinct ones).

The product of its digits is 4800000, while the sum is 48.

The spelling of 25544258355 in words is "twenty-five billion, five hundred forty-four million, two hundred fifty-eight thousand, three hundred fifty-five".