25453716510 has 96 divisors (see below), whose sum is σ = 64873388160. Its totient is φ = 6390518976.

The previous prime is 25453716467. The next prime is 25453716517. The reversal of 25453716510 is 1561735452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25453716517) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1758081 + ... + 1772499.

It is an arithmetic number, because the mean of its divisors is an integer number (675764460).

Almost surely, 2^25453716510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25453716510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32436694080).

25453716510 is an abundant number, since it is smaller than the sum of its proper divisors (39419671650).

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

25453716510 is a wasteful number, since it uses less digits than its factorization.

25453716510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14630 (or 14611 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 25453716510 in words is "twenty-five billion, four hundred fifty-three million, seven hundred sixteen thousand, five hundred ten".