25315413500 has 96 divisors (see below), whose sum is σ = 60089789760. Its totient is φ = 9261216000.

The previous prime is 25315413499. The next prime is 25315413509. The reversal of 25315413500 is 531451352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25315413509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 690635 + ... + 726365.

It is an arithmetic number, because the mean of its divisors is an integer number (625935310).

Almost surely, 2^25315413500 is an apocalyptic number.

25315413500 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 25315413500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30044894880).

25315413500 is an abundant number, since it is smaller than the sum of its proper divisors (34774376260).

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

25315413500 is a wasteful number, since it uses less digits than its factorization.

25315413500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35872 (or 35860 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 25315413500 its reverse (531451352), we get a palindrome (25846864852).

The spelling of 25315413500 in words is "twenty-five billion, three hundred fifteen million, four hundred thirteen thousand, five hundred".