51306344 has 16 divisors (see below), whose sum is σ = 96814500. Its totient is φ = 25489152.

The previous prime is 51306337. The next prime is 51306347. The reversal of 51306344 is 44360315.

It can be written as a sum of positive squares in 2 ways, for example, as 51294244 + 12100 = 7162^2 + 110^2 .

It is not an unprimeable number, because it can be changed into a prime (51306347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19169 + ... + 21680.

Almost surely, 2^51306344 is an apocalyptic number.

It is an amenable number.

51306344 is a deficient number, since it is larger than the sum of its proper divisors (45508156).

51306344 is a wasteful number, since it uses less digits than its factorization.

51306344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41012 (or 41008 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 51306344 is about 7162.8446862961. The cubic root of 51306344 is about 371.5840149038.

Adding to 51306344 its reverse (44360315), we get a palindrome (95666659).

The spelling of 51306344 in words is "fifty-one million, three hundred six thousand, three hundred forty-four".