1255522330 has 16 divisors (see below), whose sum is σ = 2262189384. Its totient is φ = 501709120.

The previous prime is 1255522309. The next prime is 1255522361. The reversal of 1255522330 is 332255521.

It can be written as a sum of positive squares in 4 ways, for example, as 823173481 + 432348849 = 28691^2 + 20793^2 .

It is a super-2 number, since 2×1255522330² = 3152672642257257800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51841 + ... + 72100.

Almost surely, 2^1255522330 is an apocalyptic number.

1255522330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255522330 is a deficient number, since it is larger than the sum of its proper divisors (1006667054).

1255522330 is a wasteful number, since it uses less digits than its factorization.

1255522330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124961.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 1255522330 is about 35433.3505330783. The cubic root of 1255522330 is about 1078.8013479074.

Adding to 1255522330 its reverse (332255521), we get a palindrome (1587777851).

The spelling of 1255522330 in words is "one billion, two hundred fifty-five million, five hundred twenty-two thousand, three hundred thirty".