51272633 has 6 divisors (see below), whose sum is σ = 51863214. Its totient is φ = 50688704.

The previous prime is 51272597. The next prime is 51272653. The reversal of 51272633 is 33627215.

It can be written as a sum of positive squares in 3 ways, for example, as 620944 + 50651689 = 788^2 + 7117^2 .

It is not a de Polignac number, because 51272633 - 2⁶ = 51272569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51272596 and 51272605.

It is not an unprimeable number, because it can be changed into a prime (51272653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4685 + ... + 11157.

It is an arithmetic number, because the mean of its divisors is an integer number (8643869).

Almost surely, 2^51272633 is an apocalyptic number.

It is an amenable number.

51272633 is a deficient number, since it is larger than the sum of its proper divisors (590581).

51272633 is an frugal number, since it uses more digits than its factorization.

51272633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6651 (or 6562 counting only the distinct ones).

The product of its digits is 7560, while the sum is 29.

The square root of 51272633 is about 7160.4911144418. The cubic root of 51272633 is about 371.5026135781.

Adding to 51272633 its reverse (33627215), we get a palindrome (84899848).

The spelling of 51272633 in words is "fifty-one million, two hundred seventy-two thousand, six hundred thirty-three".