1015185255 has 16 divisors (see below), whose sum is σ = 1856338944. Its totient is φ = 464084640.

The previous prime is 1015185253. The next prime is 1015185263. The reversal of 1015185255 is 5525815101.

It is not a de Polignac number, because 1015185255 - 2¹ = 1015185253 is a prime.

It is a super-2 number, since 2×1015185255² = 2061202203938830050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015185251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4834111 + ... + 4834320.

It is an arithmetic number, because the mean of its divisors is an integer number (116021184).

Almost surely, 2^1015185255 is an apocalyptic number.

1015185255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1015185255 is a deficient number, since it is larger than the sum of its proper divisors (841153689).

1015185255 is an equidigital number, since it uses as much as digits as its factorization.

1015185255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9668446.

The product of its (nonzero) digits is 10000, while the sum is 33.

The square root of 1015185255 is about 31861.9719257927. The cubic root of 1015185255 is about 1005.0363443207.

The spelling of 1015185255 in words is "one billion, fifteen million, one hundred eighty-five thousand, two hundred fifty-five".