25841542100 has 72 divisors (see below), whose sum is σ = 61237934688. Its totient is φ = 9387100800.

The previous prime is 25841542079. The next prime is 25841542117. The reversal of 25841542100 is 124514852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1084919 + ... + 1108481.

Almost surely, 2^25841542100 is an apocalyptic number.

25841542100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25841542100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30618967344).

25841542100 is an abundant number, since it is smaller than the sum of its proper divisors (35396392588).

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

25841542100 is a wasteful number, since it uses less digits than its factorization.

25841542100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24585 (or 24578 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The spelling of 25841542100 in words is "twenty-five billion, eight hundred forty-one million, five hundred forty-two thousand, one hundred".