25273855782 has 48 divisors (see below), whose sum is σ = 62592240672. Its totient is φ = 7220021760.

The previous prime is 25273855721. The next prime is 25273855799. The reversal of 25273855782 is 28755837252.

25273855782 is a `hidden beast` number, since 2 + 5 + 2 + 7 + 3 + 8 + 557 + 82 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1257718 + ... + 1277654.

It is an arithmetic number, because the mean of its divisors is an integer number (1304005014).

Almost surely, 2^25273855782 is an apocalyptic number.

25273855782 is an abundant number, since it is smaller than the sum of its proper divisors (37318384890).

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

25273855782 is a wasteful number, since it uses less digits than its factorization.

25273855782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30013 (or 30010 counting only the distinct ones).

The product of its digits is 9408000, while the sum is 54.

The spelling of 25273855782 in words is "twenty-five billion, two hundred seventy-three million, eight hundred fifty-five thousand, seven hundred eighty-two".