1005155506 has 16 divisors (see below), whose sum is σ = 1535093280. Its totient is φ = 493477920.

The previous prime is 1005155491. The next prime is 1005155513. The reversal of 1005155506 is 6055515001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106021 + ... + 115111.

It is an arithmetic number, because the mean of its divisors is an integer number (95943330).

Almost surely, 2^1005155506 is an apocalyptic number.

1005155506 is a deficient number, since it is larger than the sum of its proper divisors (529937774).

1005155506 is an equidigital number, since it uses as much as digits as its factorization.

1005155506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10089.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 1005155506 is about 31704.1875152163. The cubic root of 1005155506 is about 1001.7155571805.

The spelling of 1005155506 in words is "one billion, five million, one hundred fifty-five thousand, five hundred six".