25554155104 has 48 divisors (see below), whose sum is σ = 51971310720. Its totient is φ = 12355706880.

The previous prime is 25554155063. The next prime is 25554155119. The reversal of 25554155104 is 40155145552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1432512 + ... + 1450240.

It is an arithmetic number, because the mean of its divisors is an integer number (1082735640).

Almost surely, 2^25554155104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25554155104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25985655360).

25554155104 is an abundant number, since it is smaller than the sum of its proper divisors (26417155616).

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

25554155104 is a wasteful number, since it uses less digits than its factorization.

25554155104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19223 (or 19215 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 37.

The spelling of 25554155104 in words is "twenty-five billion, five hundred fifty-four million, one hundred fifty-five thousand, one hundred four".