27780053256 has 48 divisors (see below), whose sum is σ = 75442723200. Its totient is φ = 9234777312.

The previous prime is 27780053239. The next prime is 27780053267. The reversal of 27780053256 is 65235008772.

27780053256 is a `hidden beast` number, since 277 + 80 + 0 + 53 + 256 = 666.

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, 499236 + ... + 552083.

It is an arithmetic number, because the mean of its divisors is an integer number (1571723400).

Almost surely, 2^27780053256 is an apocalyptic number.

It is an amenable number.

27780053256 is an abundant number, since it is smaller than the sum of its proper divisors (47662669944).

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

27780053256 is a wasteful number, since it uses less digits than its factorization.

27780053256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051698 (or 1051691 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

It can be divided in two parts, 2778005 and 3256, that added together give a triangular number (2781261 = T₂₃₅₈).

The spelling of 27780053256 in words is "twenty-seven billion, seven hundred eighty million, fifty-three thousand, two hundred fifty-six".