51322073 has 16 divisors (see below), whose sum is σ = 58288896. Its totient is φ = 44778240.

The previous prime is 51322069. The next prime is 51322079. The reversal of 51322073 is 37022315.

It is a cyclic number.

It is not a de Polignac number, because 51322073 - 2² = 51322069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51322079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26465 + ... + 28337.

It is an arithmetic number, because the mean of its divisors is an integer number (3643056).

Almost surely, 2^51322073 is an apocalyptic number.

51322073 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

51322073 is a deficient number, since it is larger than the sum of its proper divisors (6966823).

51322073 is a wasteful number, since it uses less digits than its factorization.

51322073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 51322073 is about 7163.9425597921. The cubic root of 51322073 is about 371.6219832286.

Adding to 51322073 its reverse (37022315), we get a palindrome (88344388).

The spelling of 51322073 in words is "fifty-one million, three hundred twenty-two thousand, seventy-three".