51032723 has 4 divisors (see below), whose sum is σ = 58323120. Its totient is φ = 43742328.

The previous prime is 51032719. The next prime is 51032743. The reversal of 51032723 is 32723015.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51032723 - 2² = 51032719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51032743) 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, 3645188 + ... + 3645201.

It is an arithmetic number, because the mean of its divisors is an integer number (14580780).

Almost surely, 2^51032723 is an apocalyptic number.

51032723 is a deficient number, since it is larger than the sum of its proper divisors (7290397).

51032723 is an equidigital number, since it uses as much as digits as its factorization.

51032723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7290396.

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

The square root of 51032723 is about 7143.7191294171. The cubic root of 51032723 is about 370.9222743139.

Adding to 51032723 its reverse (32723015), we get a palindrome (83755738).

It can be divided in two parts, 510 and 32723, that added together give a palindrome (33233).

The spelling of 51032723 in words is "fifty-one million, thirty-two thousand, seven hundred twenty-three".