1255433345 has 8 divisors (see below), whose sum is σ = 1558469160. Its totient is φ = 969713920.

The previous prime is 1255433321. The next prime is 1255433351. The reversal of 1255433345 is 5433345521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2768896 + 1252664449 = 1664^2 + 35393^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1255433345 - 2⁸ = 1255433089 is a prime.

It is a super-2 number, since 2×1255433345² = 3152225767475778050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4328936 + ... + 4329225.

It is an arithmetic number, because the mean of its divisors is an integer number (194808645).

Almost surely, 2^1255433345 is an apocalyptic number.

It is an amenable number.

1255433345 is a deficient number, since it is larger than the sum of its proper divisors (303035815).

1255433345 is an equidigital number, since it uses as much as digits as its factorization.

1255433345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8658195.

The product of its digits is 108000, while the sum is 35.

The square root of 1255433345 is about 35432.0948435172. The cubic root of 1255433345 is about 1078.7758606650.

Adding to 1255433345 its reverse (5433345521), we get a palindrome (6688778866).

The spelling of 1255433345 in words is "one billion, two hundred fifty-five million, four hundred thirty-three thousand, three hundred forty-five".