25313129160 has 128 divisors (see below), whose sum is σ = 82899072000. Its totient is φ = 6132360960.

The previous prime is 25313129147. The next prime is 25313129201. The reversal of 25313129160 is 6192131352.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2237037 + ... + 2248323.

It is an arithmetic number, because the mean of its divisors is an integer number (647649000).

Almost surely, 2^25313129160 is an apocalyptic number.

25313129160 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 25313129160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41449536000).

25313129160 is an abundant number, since it is smaller than the sum of its proper divisors (57585942840).

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

25313129160 is a wasteful number, since it uses less digits than its factorization.

25313129160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13011 (or 13007 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The spelling of 25313129160 in words is "twenty-five billion, three hundred thirteen million, one hundred twenty-nine thousand, one hundred sixty".