25707455456 has 48 divisors (see below), whose sum is σ = 52313370480. Its totient is φ = 12428666880.

The previous prime is 25707455393. The next prime is 25707455479. The reversal of 25707455456 is 65455470752.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3560 + ... + 226776.

It is an arithmetic number, because the mean of its divisors is an integer number (1089861885).

Almost surely, 2^25707455456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25707455456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26156685240).

25707455456 is an abundant number, since it is smaller than the sum of its proper divisors (26605915024).

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

25707455456 is a wasteful number, since it uses less digits than its factorization.

25707455456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223347 (or 223339 counting only the distinct ones).

The product of its (nonzero) digits is 5880000, while the sum is 50.

The spelling of 25707455456 in words is "twenty-five billion, seven hundred seven million, four hundred fifty-five thousand, four hundred fifty-six".