1555883 has 4 divisors (see below), whose sum is σ = 1778160. Its totient is φ = 1333608.

The previous prime is 1555861. The next prime is 1555901. The reversal of 1555883 is 3885551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3885551 = 23 ⋅168937.

It is a cyclic number.

It is not a de Polignac number, because 1555883 - 2⁶ = 1555819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1551883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111128 + ... + 111141.

It is an arithmetic number, because the mean of its divisors is an integer number (444540).

2^1555883 is an apocalyptic number.

1555883 is a deficient number, since it is larger than the sum of its proper divisors (222277).

1555883 is an equidigital number, since it uses as much as digits as its factorization.

1555883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222276.

The product of its digits is 24000, while the sum is 35.

The square root of 1555883 is about 1247.3503918306. The cubic root of 1555883 is about 115.8756842993.

The spelling of 1555883 in words is "one million, five hundred fifty-five thousand, eight hundred eighty-three".