1049217855 has 32 divisors (see below), whose sum is σ = 1921479168. Its totient is φ = 478915200.

The previous prime is 1049217853. The next prime is 1049217877. The reversal of 1049217855 is 5587129401.

It is not a de Polignac number, because 1049217855 - 2¹ = 1049217853 is a prime.

It is a super-2 number, since 2×1049217855² = 2201716214501602050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049217853) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 65325 + ... + 79785.

It is an arithmetic number, because the mean of its divisors is an integer number (60046224).

Almost surely, 2^1049217855 is an apocalyptic number.

1049217855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1049217855 is a deficient number, since it is larger than the sum of its proper divisors (872261313).

1049217855 is a wasteful number, since it uses less digits than its factorization.

1049217855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15167.

The product of its (nonzero) digits is 100800, while the sum is 42.

The square root of 1049217855 is about 32391.6324843315. The cubic root of 1049217855 is about 1016.1439229097.

The spelling of 1049217855 in words is "one billion, forty-nine million, two hundred seventeen thousand, eight hundred fifty-five".