51275312 has 20 divisors (see below), whose sum is σ = 108377736. Its totient is φ = 23306880.

The previous prime is 51275291. The next prime is 51275353. The reversal of 51275312 is 21357215.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145493 + ... + 145844.

Almost surely, 2^51275312 is an apocalyptic number.

It is an amenable number.

51275312 is an abundant number, since it is smaller than the sum of its proper divisors (57102424).

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

51275312 is a wasteful number, since it uses less digits than its factorization.

51275312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291356 (or 291350 counting only the distinct ones).

The product of its digits is 2100, while the sum is 26.

The square root of 51275312 is about 7160.6781801726. The cubic root of 51275312 is about 371.5090838145.

The spelling of 51275312 in words is "fifty-one million, two hundred seventy-five thousand, three hundred twelve".