1000513255 has 16 divisors (see below), whose sum is σ = 1375971840. Its totient is φ = 684146592.

The previous prime is 1000513249. The next prime is 1000513309. The reversal of 1000513255 is 5523150001.

It is a cyclic number.

It is not a de Polignac number, because 1000513255 - 2⁹ = 1000512743 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27249 + ... + 52378.

It is an arithmetic number, because the mean of its divisors is an integer number (85998240).

Almost surely, 2^1000513255 is an apocalyptic number.

1000513255 is a deficient number, since it is larger than the sum of its proper divisors (375458585).

1000513255 is an equidigital number, since it uses as much as digits as its factorization.

1000513255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79998.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 1000513255 is about 31630.8908347520. The cubic root of 1000513255 is about 1000.1710557383.

Adding to 1000513255 its reverse (5523150001), we get a palindrome (6523663256).

The spelling of 1000513255 in words is "one billion, five hundred thirteen thousand, two hundred fifty-five".