25515141330 has 96 divisors (see below), whose sum is σ = 71486985024. Its totient is φ = 5811329664.

The previous prime is 25515141319. The next prime is 25515141341. The reversal of 25515141330 is 3314151552.

It is an interprime number because it is at equal distance from previous prime (25515141319) and next prime (25515141341).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 385344 + ... + 446676.

It is an arithmetic number, because the mean of its divisors is an integer number (744656094).

Almost surely, 2^25515141330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25515141330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35743492512).

25515141330 is an abundant number, since it is smaller than the sum of its proper divisors (45971843694).

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

25515141330 is a wasteful number, since it uses less digits than its factorization.

25515141330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61640 (or 61633 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 25515141330 its reverse (3314151552), we get a palindrome (28829292882).

The spelling of 25515141330 in words is "twenty-five billion, five hundred fifteen million, one hundred forty-one thousand, three hundred thirty".