25313440515000 has 320 divisors, whose sum is σ = 87555828666240. Its totient is φ = 6044998080000.

The previous prime is 25313440514993. The next prime is 25313440515023. The reversal of 25313440515000 is 51504431352.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9910114 + ... + 12199886.

It is an arithmetic number, because the mean of its divisors is an integer number (273611964582).

Almost surely, 2^{25313440515000} is an apocalyptic number.

25313440515000 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 25313440515000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43777914333120).

25313440515000 is an abundant number, since it is smaller than the sum of its proper divisors (62242388151240).

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

25313440515000 is a wasteful number, since it uses less digits than its factorization.

25313440515000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289880 (or 2289861 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 25313440515000 its reverse (51504431352), we get a palindrome (25364944946352).

The spelling of 25313440515000 in words is "twenty-five trillion, three hundred thirteen billion, four hundred forty million, five hundred fifteen thousand".