1255265011 has 24 divisors (see below), whose sum is σ = 1698173792. Its totient is φ = 902880000.

The previous prime is 1255264981. The next prime is 1255265021. The reversal of 1255265011 is 1105625521.

It is not a de Polignac number, because 1255265011 - 2⁷ = 1255264883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255265021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45990 + ... + 68011.

Almost surely, 2^1255265011 is an apocalyptic number.

1255265011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1255265011 is a deficient number, since it is larger than the sum of its proper divisors (442908781).

1255265011 is a wasteful number, since it uses less digits than its factorization.

1255265011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114043 (or 114032 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 1255265011 is about 35429.7193186737. The cubic root of 1255265011 is about 1078.7276428462.

The spelling of 1255265011 in words is "one billion, two hundred fifty-five million, two hundred sixty-five thousand, eleven".