1017872055 has 16 divisors (see below), whose sum is σ = 1809550560. Its totient is φ = 542865024.

The previous prime is 1017871993. The next prime is 1017872057. The reversal of 1017872055 is 5502787101.

It is not a de Polignac number, because 1017872055 - 2⁷ = 1017871927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1017872057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3769762 + ... + 3770031.

It is an arithmetic number, because the mean of its divisors is an integer number (113096910).

Almost surely, 2^1017872055 is an apocalyptic number.

1017872055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1017872055 is a deficient number, since it is larger than the sum of its proper divisors (791678505).

1017872055 is an equidigital number, since it uses as much as digits as its factorization.

1017872055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7539807 (or 7539801 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 36.

The square root of 1017872055 is about 31904.1071807377. The cubic root of 1017872055 is about 1005.9222098613.

The spelling of 1017872055 in words is "one billion, seventeen million, eight hundred seventy-two thousand, fifty-five".