1255516415033 has 2 divisors, whose sum is σ = 1255516415034. Its totient is φ = 1255516415032.

The previous prime is 1255516415003. The next prime is 1255516415053. The reversal of 1255516415033 is 3305146155521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1240009192249 + 15507222784 = 1113557^2 + 124528^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255516415033 - 2¹² = 1255516410937 is a prime.

It is not a weakly prime, because it can be changed into another prime (1255516415003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627758207516 + 627758207517.

It is an arithmetic number, because the mean of its divisors is an integer number (627758207517).

Almost surely, 2^{1255516415033} is an apocalyptic number.

It is an amenable number.

1255516415033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255516415033 is an equidigital number, since it uses as much as digits as its factorization.

1255516415033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 1255516415033 in words is "one trillion, two hundred fifty-five billion, five hundred sixteen million, four hundred fifteen thousand, thirty-three".