51672263 has 4 divisors (see below), whose sum is σ = 51756360. Its totient is φ = 51588168.

The previous prime is 51672251. The next prime is 51672281. The reversal of 51672263 is 36227615.

51672263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36227615 = 5 ⋅7245523.

It is a cyclic number.

It is not a de Polignac number, because 51672263 - 2⁶ = 51672199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51672233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41120 + ... + 42357.

It is an arithmetic number, because the mean of its divisors is an integer number (12939090).

Almost surely, 2^51672263 is an apocalyptic number.

51672263 is a deficient number, since it is larger than the sum of its proper divisors (84097).

51672263 is an equidigital number, since it uses as much as digits as its factorization.

51672263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84096.

The product of its digits is 15120, while the sum is 32.

The square root of 51672263 is about 7188.3421593577. The cubic root of 51672263 is about 372.4653073406.

Adding to 51672263 its reverse (36227615), we get a palindrome (87899878).

The spelling of 51672263 in words is "fifty-one million, six hundred seventy-two thousand, two hundred sixty-three".