1255512011 has 16 divisors (see below), whose sum is σ = 1368110016. Its totient is φ = 1145252736.

The previous prime is 1255511969. The next prime is 1255512019. The reversal of 1255512011 is 1102155521.

It is a cyclic number.

It is not a de Polignac number, because 1255512011 - 2³⁰ = 181770187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255512019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1034441 + ... + 1035653.

It is an arithmetic number, because the mean of its divisors is an integer number (85506876).

Almost surely, 2^1255512011 is an apocalyptic number.

1255512011 is a deficient number, since it is larger than the sum of its proper divisors (112598005).

1255512011 is a wasteful number, since it uses less digits than its factorization.

1255512011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102.

The product of its (nonzero) digits is 500, while the sum is 23.

The square root of 1255512011 is about 35433.2049213728. The cubic root of 1255512011 is about 1078.7983923828.

Adding to 1255512011 its reverse (1102155521), we get a palindrome (2357667532).

The spelling of 1255512011 in words is "one billion, two hundred fifty-five million, five hundred twelve thousand, eleven".