51723838 has 8 divisors (see below), whose sum is σ = 77736240. Its totient is φ = 25811760.

The previous prime is 51723823. The next prime is 51723839. The reversal of 51723838 is 83832715.

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

It is a junction number, because it is equal to n+sod(n) for n = 51723797 and 51723806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51723839) 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, 23778 + ... + 25861.

It is an arithmetic number, because the mean of its divisors is an integer number (9717030).

Almost surely, 2^51723838 is an apocalyptic number.

51723838 is a deficient number, since it is larger than the sum of its proper divisors (26012402).

51723838 is a wasteful number, since it uses less digits than its factorization.

51723838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50162.

The product of its digits is 40320, while the sum is 37.

The square root of 51723838 is about 7191.9286703916. The cubic root of 51723838 is about 372.5891875387.

The spelling of 51723838 in words is "fifty-one million, seven hundred twenty-three thousand, eight hundred thirty-eight".