1005504 has 28 divisors (see below), whose sum is σ = 2660904. Its totient is φ = 335104.

The previous prime is 1005503. The next prime is 1005527. The reversal of 1005504 is 4055001.

It is a super-2 number, since 2×1005504² = 2022076588032, which contains 22 as substring.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005503) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2427 + ... + 2810.

2^1005504 is an apocalyptic number.

It is an amenable number.

1005504 is an abundant number, since it is smaller than the sum of its proper divisors (1655400).

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

1005504 is an equidigital number, since it uses as much as digits as its factorization.

1005504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5252 (or 5242 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 1005504 is about 1002.7482236334. The cubic root of 1005504 is about 100.1831310920.

The spelling of 1005504 in words is "one million, five thousand, five hundred four".