1255442003 has 2 divisors, whose sum is σ = 1255442004. Its totient is φ = 1255442002.

The previous prime is 1255441991. The next prime is 1255442063. The reversal of 1255442003 is 3002445521.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3002445521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255442003 is a prime.

It is a super-2 number, since 2×1255442003² = 3152269245793304018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1255442063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627721001 + 627721002.

It is an arithmetic number, because the mean of its divisors is an integer number (627721002).

Almost surely, 2^1255442003 is an apocalyptic number.

1255442003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255442003 is an equidigital number, since it uses as much as digits as its factorization.

1255442003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1255442003 is about 35432.2170206720. The cubic root of 1255442003 is about 1078.7783405577.

Adding to 1255442003 its reverse (3002445521), we get a palindrome (4257887524).

The spelling of 1255442003 in words is "one billion, two hundred fifty-five million, four hundred forty-two thousand, three".