51520322 has 16 divisors (see below), whose sum is σ = 92161152. Its totient is φ = 21120000.

The previous prime is 51520307. The next prime is 51520333. The reversal of 51520322 is 22302515.

It is a junction number, because it is equal to n+sod(n) for n = 51520294 and 51520303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79679 + ... + 80322.

It is an arithmetic number, because the mean of its divisors is an integer number (5760072).

Almost surely, 2^51520322 is an apocalyptic number.

51520322 is a deficient number, since it is larger than the sum of its proper divisors (40640830).

51520322 is a wasteful number, since it uses less digits than its factorization.

51520322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160033.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 51520322 is about 7177.7658083836. The cubic root of 51520322 is about 372.0998739428.

Adding to 51520322 its reverse (22302515), we get a palindrome (73822837).

The spelling of 51520322 in words is "fifty-one million, five hundred twenty thousand, three hundred twenty-two".