51200723 has 8 divisors (see below), whose sum is σ = 58617600. Its totient is φ = 43809480.

The previous prime is 51200717. The next prime is 51200741. The reversal of 51200723 is 32700215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51200723 - 2⁴ = 51200707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51200695 and 51200704.

It is not an unprimeable number, because it can be changed into a prime (51220723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1913 + ... + 10298.

It is an arithmetic number, because the mean of its divisors is an integer number (7327200).

Almost surely, 2^51200723 is an apocalyptic number.

51200723 is a deficient number, since it is larger than the sum of its proper divisors (7416877).

51200723 is a wasteful number, since it uses less digits than its factorization.

51200723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12817.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 51200723 is about 7155.4680489818. The cubic root of 51200723 is about 371.3288545291.

Adding to 51200723 its reverse (32700215), we get a palindrome (83900938).

The spelling of 51200723 in words is "fifty-one million, two hundred thousand, seven hundred twenty-three".