1280082555 has 32 divisors (see below), whose sum is σ = 2289369600. Its totient is φ = 678610656.

The previous prime is 1280082547. The next prime is 1280082563. The reversal of 1280082555 is 5552800821.

1280082555 is a `hidden beast` number, since 1 + 28 + 0 + 0 + 82 + 555 = 666.

It is an interprime number because it is at equal distance from previous prime (1280082547) and next prime (1280082563).

It is not a de Polignac number, because 1280082555 - 2³ = 1280082547 is a prime.

It is a super-2 number, since 2×1280082555² = 3277222695230656050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5845 + ... + 50934.

It is an arithmetic number, because the mean of its divisors is an integer number (71542800).

Almost surely, 2^1280082555 is an apocalyptic number.

1280082555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1280082555 is a deficient number, since it is larger than the sum of its proper divisors (1009287045).

1280082555 is a wasteful number, since it uses less digits than its factorization.

1280082555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56960 (or 56954 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 1280082555 is about 35778.2413625936. The cubic root of 1280082555 is about 1085.7903887139.

The spelling of 1280082555 in words is "one billion, two hundred eighty million, eighty-two thousand, five hundred fifty-five".