1272555255 has 8 divisors (see below), whose sum is σ = 2036088432. Its totient is φ = 678696128.

The previous prime is 1272555241. The next prime is 1272555259. The reversal of 1272555255 is 5525552721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1272555255 - 2⁸ = 1272554999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272555259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42418494 + ... + 42418523.

It is an arithmetic number, because the mean of its divisors is an integer number (254511054).

Almost surely, 2^1272555255 is an apocalyptic number.

1272555255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1272555255 is a deficient number, since it is larger than the sum of its proper divisors (763533177).

1272555255 is an equidigital number, since it uses as much as digits as its factorization.

1272555255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84837025.

The product of its digits is 175000, while the sum is 39.

The square root of 1272555255 is about 35672.8924394981. The cubic root of 1272555255 is about 1083.6579370212.

It can be divided in two parts, 1272555 and 255, that added together give a triangular number (1272810 = T₁₅₉₅).

The spelling of 1272555255 in words is "one billion, two hundred seventy-two million, five hundred fifty-five thousand, two hundred fifty-five".