51373120 has 28 divisors (see below), whose sum is σ = 122333004. Its totient is φ = 20549120.

The previous prime is 51373111. The next prime is 51373139. The reversal of 51373120 is 2137315.

It can be written as a sum of positive squares in 2 ways, for example, as 25240576 + 26132544 = 5024^2 + 5112^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51373091 and 51373100.

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, 79951 + ... + 80590.

Almost surely, 2^51373120 is an apocalyptic number.

It is an amenable number.

51373120 is an abundant number, since it is smaller than the sum of its proper divisors (70959884).

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

51373120 is a wasteful number, since it uses less digits than its factorization.

51373120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160558 (or 160548 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 51373120 is about 7167.5044471559. The cubic root of 51373120 is about 371.7451524632.

The spelling of 51373120 in words is "fifty-one million, three hundred seventy-three thousand, one hundred twenty".