1005021055 has 16 divisors (see below), whose sum is σ = 1290319200. Its totient is φ = 749208960.

The previous prime is 1005021007. The next prime is 1005021089. The reversal of 1005021055 is 5501205001.

It is not a de Polignac number, because 1005021055 - 2²⁹ = 468150143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80920 + ... + 92509.

It is an arithmetic number, because the mean of its divisors is an integer number (80644950).

Almost surely, 2^1005021055 is an apocalyptic number.

1005021055 is a deficient number, since it is larger than the sum of its proper divisors (285298145).

1005021055 is a wasteful number, since it uses less digits than its factorization.

1005021055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173514.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 1005021055 is about 31702.0670461722. The cubic root of 1005021055 is about 1001.6708915664.

Adding to 1005021055 its reverse (5501205001), we get a palindrome (6506226056).

The spelling of 1005021055 in words is "one billion, five million, twenty-one thousand, fifty-five".