1255534403 has 2 divisors, whose sum is σ = 1255534404. Its totient is φ = 1255534402.

The previous prime is 1255534369. The next prime is 1255534409. The reversal of 1255534403 is 3044355521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1255534403 - 2¹⁰ = 1255533379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255534403.

It is not a weakly prime, because it can be changed into another prime (1255534409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627767201 + 627767202.

It is an arithmetic number, because the mean of its divisors is an integer number (627767202).

Almost surely, 2^1255534403 is an apocalyptic number.

1255534403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255534403 is an equidigital number, since it uses as much as digits as its factorization.

1255534403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 1255534403 is about 35433.5208947686. The cubic root of 1255534403 is about 1078.8048057848.

Adding to 1255534403 its reverse (3044355521), we get a palindrome (4299889924).

The spelling of 1255534403 in words is "one billion, two hundred fifty-five million, five hundred thirty-four thousand, four hundred three".