25731172025740 has 12 divisors (see below), whose sum is σ = 54035461254096. Its totient is φ = 10292468810288.

The previous prime is 25731172025731. The next prime is 25731172025789. The reversal of 25731172025740 is 4752027113752.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643279300624 + ... + 643279300663.

It is an arithmetic number, because the mean of its divisors is an integer number (4502955104508).

Almost surely, 2^{25731172025740} is an apocalyptic number.

25731172025740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25731172025740 is an abundant number, since it is smaller than the sum of its proper divisors (28304289228356).

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

25731172025740 is a wasteful number, since it uses less digits than its factorization.

25731172025740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286558601296 (or 1286558601294 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 46.

The spelling of 25731172025740 in words is "twenty-five trillion, seven hundred thirty-one billion, one hundred seventy-two million, twenty-five thousand, seven hundred forty".