1555055 has 8 divisors (see below), whose sum is σ = 1964400. Its totient is φ = 1178496.

The previous prime is 1555051. The next prime is 1555061. The reversal of 1555055 is 5505551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1555055 - 2² = 1555051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1555051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8090 + ... + 8279.

It is an arithmetic number, because the mean of its divisors is an integer number (245550).

2^1555055 is an apocalyptic number.

1555055 is a deficient number, since it is larger than the sum of its proper divisors (409345).

1555055 is a wasteful number, since it uses less digits than its factorization.

1555055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16393.

The product of its (nonzero) digits is 3125, while the sum is 26.

The square root of 1555055 is about 1247.0184441298. The cubic root of 1555055 is about 115.8551253216.

The spelling of 1555055 in words is "one million, five hundred fifty-five thousand, fifty-five".