1881355255 has 32 divisors (see below), whose sum is σ = 2481058944. Its totient is φ = 1361166336.

The previous prime is 1881355253. The next prime is 1881355261. The reversal of 1881355255 is 5525531881.

It is a cyclic number.

It is not a de Polignac number, because 1881355255 - 2¹ = 1881355253 is a prime.

It is a super-2 number, since 2×1881355255² = 7078995191032230050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1881355253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 647967 + ... + 650863.

It is an arithmetic number, because the mean of its divisors is an integer number (77533092).

Almost surely, 2^1881355255 is an apocalyptic number.

1881355255 is a deficient number, since it is larger than the sum of its proper divisors (599703689).

1881355255 is a wasteful number, since it uses less digits than its factorization.

1881355255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115.

The product of its digits is 240000, while the sum is 43.

The square root of 1881355255 is about 43374.5922747408. The cubic root of 1881355255 is about 1234.4976577616.

The spelling of 1881355255 in words is "one billion, eight hundred eighty-one million, three hundred fifty-five thousand, two hundred fifty-five".