25741057408 has 64 divisors (see below), whose sum is σ = 55976898240. Its totient is φ = 11693376000.

The previous prime is 25741057403. The next prime is 25741057411. The reversal of 25741057408 is 80475014752.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25741057403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2826943 + ... + 2836033.

It is an arithmetic number, because the mean of its divisors is an integer number (874639035).

Almost surely, 2^25741057408 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 25741057408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27988449120).

25741057408 is an abundant number, since it is smaller than the sum of its proper divisors (30235840832).

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

25741057408 is a wasteful number, since it uses less digits than its factorization.

25741057408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11127 (or 11115 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 43.

The spelling of 25741057408 in words is "twenty-five billion, seven hundred forty-one million, fifty-seven thousand, four hundred eight".