25671331433540 has 96 divisors (see below), whose sum is σ = 61473425053824. Its totient is φ = 8920842762240.

The previous prime is 25671331433453. The next prime is 25671331433549. The reversal of 25671331433540 is 4533413317652.

It is not an unprimeable number, because it can be changed into a prime (25671331433549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 304456067 + ... + 304540373.

It is an arithmetic number, because the mean of its divisors is an integer number (640348177644).

Almost surely, 2^{25671331433540} is an apocalyptic number.

25671331433540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25671331433540 is an abundant number, since it is smaller than the sum of its proper divisors (35802093620284).

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

25671331433540 is a wasteful number, since it uses less digits than its factorization.

25671331433540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153237 (or 153235 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 47.

The spelling of 25671331433540 in words is "twenty-five trillion, six hundred seventy-one billion, three hundred thirty-one million, four hundred thirty-three thousand, five hundred forty".