1255254310511 has 4 divisors (see below), whose sum is σ = 1255738780224. Its totient is φ = 1254769840800.

The previous prime is 1255254310507. The next prime is 1255254310529. The reversal of 1255254310511 is 1150134525521.

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 1255254310511 - 2² = 1255254310507 is a prime.

It is a super-2 number, since 2×1255254310511² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255254310561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242230970 + ... + 242236151.

It is an arithmetic number, because the mean of its divisors is an integer number (313934695056).

Almost surely, 2^{1255254310511} is an apocalyptic number.

1255254310511 is a deficient number, since it is larger than the sum of its proper divisors (484469713).

1255254310511 is an equidigital number, since it uses as much as digits as its factorization.

1255254310511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484469712.

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 1255254310511 in words is "one trillion, two hundred fifty-five billion, two hundred fifty-four million, three hundred ten thousand, five hundred eleven".