51273672 has 32 divisors (see below), whose sum is σ = 130289280. Its totient is φ = 16810560.

The previous prime is 51273661. The next prime is 51273679. The reversal of 51273672 is 27637215.

It is not an unprimeable number, because it can be changed into a prime (51273679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16048 + ... + 18975.

It is an arithmetic number, because the mean of its divisors is an integer number (4071540).

Almost surely, 2^51273672 is an apocalyptic number.

It is an amenable number.

51273672 is an abundant number, since it is smaller than the sum of its proper divisors (79015608).

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

51273672 is a wasteful number, since it uses less digits than its factorization.

51273672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35093 (or 35089 counting only the distinct ones).

The product of its digits is 17640, while the sum is 33.

The square root of 51273672 is about 7160.5636649638. The cubic root of 51273672 is about 371.5051229649.

The spelling of 51273672 in words is "fifty-one million, two hundred seventy-three thousand, six hundred seventy-two".