1275055512 has 64 divisors (see below), whose sum is σ = 3234664800. Its totient is φ = 418790400.

The previous prime is 1275055429. The next prime is 1275055541. The reversal of 1275055512 is 2155505721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553948 + ... + 556244.

Almost surely, 2^1275055512 is an apocalyptic number.

1275055512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1275055512 is an abundant number, since it is smaller than the sum of its proper divisors (1959609288).

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

1275055512 is a wasteful number, since it uses less digits than its factorization.

1275055512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636 (or 2632 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 33.

The square root of 1275055512 is about 35707.9194577337. The cubic root of 1275055512 is about 1084.3671795254.

The spelling of 1275055512 in words is "one billion, two hundred seventy-five million, fifty-five thousand, five hundred twelve".