25493711455 has 8 divisors (see below), whose sum is σ = 30622423104. Its totient is φ = 20374989600.

The previous prime is 25493711437. The next prime is 25493711501. The reversal of 25493711455 is 55411739452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25493711455 - 2²⁹ = 24956840543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2491831 + ... + 2502040.

It is an arithmetic number, because the mean of its divisors is an integer number (3827802888).

Almost surely, 2^25493711455 is an apocalyptic number.

25493711455 is a deficient number, since it is larger than the sum of its proper divisors (5128711649).

25493711455 is a wasteful number, since it uses less digits than its factorization.

25493711455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4994897.

The product of its digits is 756000, while the sum is 46.

The spelling of 25493711455 in words is "twenty-five billion, four hundred ninety-three million, seven hundred eleven thousand, four hundred fifty-five".