25741057438 has 4 divisors (see below), whose sum is σ = 38611586160. Its totient is φ = 12870528718.

The previous prime is 25741057411. The next prime is 25741057439. The reversal of 25741057438 is 83475014752.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25741057439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6435264358 + ... + 6435264361.

It is an arithmetic number, because the mean of its divisors is an integer number (9652896540).

Almost surely, 2^25741057438 is an apocalyptic number.

25741057438 is a deficient number, since it is larger than the sum of its proper divisors (12870528722).

25741057438 is a wasteful number, since it uses less digits than its factorization.

25741057438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12870528721.

The product of its (nonzero) digits is 940800, while the sum is 46.

The spelling of 25741057438 in words is "twenty-five billion, seven hundred forty-one million, fifty-seven thousand, four hundred thirty-eight".