51372236 has 18 divisors (see below), whose sum is σ = 90872460. Its totient is φ = 25411600.

The previous prime is 51372227. The next prime is 51372241. The reversal of 51372236 is 63227315.

51372236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 51372199 and 51372208.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 40175 + ... + 41433.

It is an arithmetic number, because the mean of its divisors is an integer number (5048470).

Almost surely, 2^51372236 is an apocalyptic number.

It is an amenable number.

51372236 is a deficient number, since it is larger than the sum of its proper divisors (39500224).

51372236 is a wasteful number, since it uses less digits than its factorization.

51372236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465 (or 1362 counting only the distinct ones).

The product of its digits is 7560, while the sum is 29.

The square root of 51372236 is about 7167.4427796809. The cubic root of 51372236 is about 371.7430201899.

The spelling of 51372236 in words is "fifty-one million, three hundred seventy-two thousand, two hundred thirty-six".