25260215160 has 128 divisors (see below), whose sum is σ = 77293440000. Its totient is φ = 6602267136.

The previous prime is 25260215159. The next prime is 25260215177. The reversal of 25260215160 is 6151206252.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 2465809 + ... + 2476031.

It is an arithmetic number, because the mean of its divisors is an integer number (603855000).

Almost surely, 2^25260215160 is an apocalyptic number.

25260215160 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 25260215160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38646720000).

25260215160 is an abundant number, since it is smaller than the sum of its proper divisors (52033224840).

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

25260215160 is a wasteful number, since it uses less digits than its factorization.

25260215160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10645 (or 10641 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

It can be divided in two parts, 252602 and 15160, that added together give a palindrome (267762).

The spelling of 25260215160 in words is "twenty-five billion, two hundred sixty million, two hundred fifteen thousand, one hundred sixty".