1255091012 has 24 divisors (see below), whose sum is σ = 2541960960. Its totient is φ = 531086400.

The previous prime is 1255091003. The next prime is 1255091021. The reversal of 1255091012 is 2101905521.

It is an interprime number because it is at equal distance from previous prime (1255091003) and next prime (1255091021).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281489 + ... + 285912.

It is an arithmetic number, because the mean of its divisors is an integer number (105915040).

Almost surely, 2^1255091012 is an apocalyptic number.

It is an amenable number.

1255091012 is an abundant number, since it is smaller than the sum of its proper divisors (1286869948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255091012 is a wasteful number, since it uses less digits than its factorization.

1255091012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567491 (or 567489 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 1255091012 is about 35427.2636820853. The cubic root of 1255091012 is about 1078.6777978061.

Adding to 1255091012 its reverse (2101905521), we get a palindrome (3356996533).

The spelling of 1255091012 in words is "one billion, two hundred fifty-five million, ninety-one thousand, twelve".