25565275886740 has 48 divisors (see below), whose sum is σ = 53716708584000. Its totient is φ = 10220467859712.

The previous prime is 25565275886719. The next prime is 25565275886747. The reversal of 25565275886740 is 4768857256552.

It is a self number, because there is not a number n which added to its sum of digits gives 25565275886740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25565275886747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413519551 + ... + 413581369.

It is an arithmetic number, because the mean of its divisors is an integer number (1119098095500).

Almost surely, 2^{25565275886740} is an apocalyptic number.

25565275886740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25565275886740 is an abundant number, since it is smaller than the sum of its proper divisors (28151432697260).

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

25565275886740 is a wasteful number, since it uses less digits than its factorization.

25565275886740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72904 (or 72902 counting only the distinct ones).

The product of its (nonzero) digits is 1128960000, while the sum is 70.

The spelling of 25565275886740 in words is "twenty-five trillion, five hundred sixty-five billion, two hundred seventy-five million, eight hundred eighty-six thousand, seven hundred forty".