1255020612 has 24 divisors (see below), whose sum is σ = 3007527936. Its totient is φ = 407033568.

The previous prime is 1255020581. The next prime is 1255020719. The reversal of 1255020612 is 2160205521.

It is a happy number.

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, 1412868 + ... + 1413755.

It is an arithmetic number, because the mean of its divisors is an integer number (125313664).

Almost surely, 2^1255020612 is an apocalyptic number.

1255020612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1255020612 is an abundant number, since it is smaller than the sum of its proper divisors (1752507324).

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

1255020612 is a wasteful number, since it uses less digits than its factorization.

1255020612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826667 (or 2826665 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1255020612 is about 35426.2700830895. The cubic root of 1255020612 is about 1078.6576291925.

The spelling of 1255020612 in words is "one billion, two hundred fifty-five million, twenty thousand, six hundred twelve".