1255361353 has 4 divisors (see below), whose sum is σ = 1255438800. Its totient is φ = 1255283908.

The previous prime is 1255361351. The next prime is 1255361381. The reversal of 1255361353 is 3531635521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3531635521 = 22003 ⋅160507.

It is a cyclic number.

It is not a de Polignac number, because 1255361353 - 2¹ = 1255361351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255361351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4075 + ... + 50272.

It is an arithmetic number, because the mean of its divisors is an integer number (313859700).

Almost surely, 2^1255361353 is an apocalyptic number.

It is an amenable number.

1255361353 is a deficient number, since it is larger than the sum of its proper divisors (77447).

1255361353 is an equidigital number, since it uses as much as digits as its factorization.

1255361353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77446.

The product of its digits is 40500, while the sum is 34.

The square root of 1255361353 is about 35431.0789138575. The cubic root of 1255361353 is about 1078.7552397066.

Adding to 1255361353 its reverse (3531635521), we get a palindrome (4786996874).

The spelling of 1255361353 in words is "one billion, two hundred fifty-five million, three hundred sixty-one thousand, three hundred fifty-three".