51351322 has 16 divisors (see below), whose sum is σ = 88972992. Its totient is φ = 21968320.

The previous prime is 51351253. The next prime is 51351359. The reversal of 51351322 is 22315315.

It is a super-2 number, since 2×51351322² = 5273916542295368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 51351293 and 51351302.

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, 68278 + ... + 69025.

It is an arithmetic number, because the mean of its divisors is an integer number (5560812).

Almost surely, 2^51351322 is an apocalyptic number.

51351322 is a deficient number, since it is larger than the sum of its proper divisors (37621670).

51351322 is a wasteful number, since it uses less digits than its factorization.

51351322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137333.

The product of its digits is 900, while the sum is 22.

The square root of 51351322 is about 7165.9836728812. The cubic root of 51351322 is about 371.6925669399.

Adding to 51351322 its reverse (22315315), we get a palindrome (73666637).

The spelling of 51351322 in words is "fifty-one million, three hundred fifty-one thousand, three hundred twenty-two".