1255332405443 has 4 divisors (see below), whose sum is σ = 1255346311968. Its totient is φ = 1255318498920.

The previous prime is 1255332405409. The next prime is 1255332405451. The reversal of 1255332405443 is 3445042335521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1255332405443 - 2²⁸ = 1255063969987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1255332405443.

It is not an unprimeable number, because it can be changed into a prime (1255332405463) 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, 6816968 + ... + 6998693.

It is an arithmetic number, because the mean of its divisors is an integer number (313836577992).

Almost surely, 2^{1255332405443} is an apocalyptic number.

1255332405443 is a deficient number, since it is larger than the sum of its proper divisors (13906525).

1255332405443 is an equidigital number, since it uses as much as digits as its factorization.

1255332405443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13906524.

The product of its (nonzero) digits is 864000, while the sum is 41.

The spelling of 1255332405443 in words is "one trillion, two hundred fifty-five billion, three hundred thirty-two million, four hundred five thousand, four hundred forty-three".