25540753744 has 80 divisors (see below), whose sum is σ = 54435515904. Its totient is φ = 11512742400.

The previous prime is 25540753691. The next prime is 25540753757. The reversal of 25540753744 is 44735704552.

It is a junction number, because it is equal to n+sod(n) for n = 25540753694 and 25540753703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11498554 + ... + 11500774.

Almost surely, 2^25540753744 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 25540753744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27217757952).

25540753744 is an abundant number, since it is smaller than the sum of its proper divisors (28894762160).

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

25540753744 is a wasteful number, since it uses less digits than its factorization.

25540753744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756 (or 2750 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 46.

The spelling of 25540753744 in words is "twenty-five billion, five hundred forty million, seven hundred fifty-three thousand, seven hundred forty-four".