1555104 has 48 divisors (see below), whose sum is σ = 4148928. Its totient is φ = 509952.

The previous prime is 1555091. The next prime is 1555111. The reversal of 1555104 is 4015551.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9229 + ... + 9395.

It is an arithmetic number, because the mean of its divisors is an integer number (86436).

2^1555104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1555104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2074464).

1555104 is an abundant number, since it is smaller than the sum of its proper divisors (2593824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1555104 is a wasteful number, since it uses less digits than its factorization.

1555104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1555104 is about 1247.0380908376. The cubic root of 1555104 is about 115.8563421792.

The spelling of 1555104 in words is "one million, five hundred fifty-five thousand, one hundred four".