1255040512 has 40 divisors (see below), whose sum is σ = 2735608392. Its totient is φ = 570470400.

The previous prime is 1255040461. The next prime is 1255040519. The reversal of 1255040512 is 2150405521.

It is a super-2 number, since 2×1255040512² = 3150253373522444288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255040519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105789 + ... + 117052.

Almost surely, 2^1255040512 is an apocalyptic number.

It is an amenable number.

1255040512 is an abundant number, since it is smaller than the sum of its proper divisors (1480567880).

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

1255040512 is an equidigital number, since it uses as much as digits as its factorization.

1255040512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222870 (or 222854 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1255040512 is about 35426.5509469945. The cubic root of 1255040512 is about 1078.6633303402.

The spelling of 1255040512 in words is "one billion, two hundred fifty-five million, forty thousand, five hundred twelve".