51723214 has 16 divisors (see below), whose sum is σ = 82295568. Its totient is φ = 24296832.

The previous prime is 51723157. The next prime is 51723223. The reversal of 51723214 is 41232715.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25792 + ... + 27724.

It is an arithmetic number, because the mean of its divisors is an integer number (5143473).

Almost surely, 2^51723214 is an apocalyptic number.

51723214 is a deficient number, since it is larger than the sum of its proper divisors (30572354).

51723214 is a wasteful number, since it uses less digits than its factorization.

51723214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739.

The product of its digits is 1680, while the sum is 25.

The square root of 51723214 is about 7191.8852882954. The cubic root of 51723214 is about 372.5876892186.

Adding to 51723214 its reverse (41232715), we get a palindrome (92955929).

The spelling of 51723214 in words is "fifty-one million, seven hundred twenty-three thousand, two hundred fourteen".