1255609332 has 18 divisors (see below), whose sum is σ = 3173901458. Its totient is φ = 418536432.

The previous prime is 1255609253. The next prime is 1255609349. The reversal of 1255609332 is 2339065521.

1255609332 is a `hidden beast` number, since 1 + 2 + 5 + 560 + 93 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 827367696 + 428241636 = 28764^2 + 20694^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 34878037 = 1255609332 / (1 + 2 + 5 + 5 + 6 + 0 + 9 + 3 + 3 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17438983 + ... + 17439054.

Almost surely, 2^1255609332 is an apocalyptic number.

1255609332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1255609332 is an abundant number, since it is smaller than the sum of its proper divisors (1918292126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255609332 is a wasteful number, since it uses less digits than its factorization.

1255609332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34878047 (or 34878042 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 1255609332 is about 35434.5781970098. The cubic root of 1255609332 is about 1078.8262660111.

The spelling of 1255609332 in words is "one billion, two hundred fifty-five million, six hundred nine thousand, three hundred thirty-two".