1005045256 has 16 divisors (see below), whose sum is σ = 1884811500. Its totient is φ = 502428864.

The previous prime is 1005045193. The next prime is 1005045277. The reversal of 1005045256 is 6525405001.

It can be written as a sum of positive squares in 2 ways, for example, as 1002988900 + 2056356 = 31670^2 + 1434^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58770 + ... + 73918.

Almost surely, 2^1005045256 is an apocalyptic number.

It is an amenable number.

1005045256 is a deficient number, since it is larger than the sum of its proper divisors (879766244).

1005045256 is a wasteful number, since it uses less digits than its factorization.

1005045256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23448 (or 23444 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1005045256 is about 31702.4487382284. The cubic root of 1005045256 is about 1001.6789316111.

The spelling of 1005045256 in words is "one billion, five million, forty-five thousand, two hundred fifty-six".