51280972 has 6 divisors (see below), whose sum is σ = 89741708. Its totient is φ = 25640484.

The previous prime is 51280951. The next prime is 51280979. The reversal of 51280972 is 27908215.

51280972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51280979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6410118 + ... + 6410125.

Almost surely, 2^51280972 is an apocalyptic number.

It is an amenable number.

51280972 is a deficient number, since it is larger than the sum of its proper divisors (38460736).

51280972 is a wasteful number, since it uses less digits than its factorization.

51280972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12820247 (or 12820245 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 51280972 is about 7161.0733832296. The cubic root of 51280972 is about 371.5227529272.

The spelling of 51280972 in words is "fifty-one million, two hundred eighty thousand, nine hundred seventy-two".