25316234454 has 96 divisors (see below), whose sum is σ = 62947808640. Its totient is φ = 6743960832.

The previous prime is 25316234443. The next prime is 25316234491. The reversal of 25316234454 is 45443261352.

It is a congruent number.

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, 511117 + ... + 558455.

It is an arithmetic number, because the mean of its divisors is an integer number (655706340).

Almost surely, 2^25316234454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25316234454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31473904320).

25316234454 is an abundant number, since it is smaller than the sum of its proper divisors (37631574186).

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

25316234454 is a wasteful number, since it uses less digits than its factorization.

25316234454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47482 (or 47475 counting only the distinct ones).

The product of its digits is 345600, while the sum is 39.

The spelling of 25316234454 in words is "twenty-five billion, three hundred sixteen million, two hundred thirty-four thousand, four hundred fifty-four".