25282780056 has 48 divisors (see below), whose sum is σ = 68966843400. Its totient is φ = 8366959872.

The previous prime is 25282780007. The next prime is 25282780073. The reversal of 25282780056 is 65008728252.

25282780056 is a `hidden beast` number, since 2 + 528 + 2 + 78 + 0 + 0 + 56 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25282779993 and 25282780020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1253121 + ... + 1273136.

Almost surely, 2^25282780056 is an apocalyptic number.

It is an amenable number.

25282780056 is an abundant number, since it is smaller than the sum of its proper divisors (43684063344).

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

25282780056 is a wasteful number, since it uses less digits than its factorization.

25282780056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526408 (or 2526401 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 25282780056 in words is "twenty-five billion, two hundred eighty-two million, seven hundred eighty thousand, fifty-six".