51943223 has 8 divisors (see below), whose sum is σ = 54945888. Its totient is φ = 49002624.

The previous prime is 51943219. The next prime is 51943231. The reversal of 51943223 is 32234915.

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 51943223 - 2² = 51943219 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 (51943253) 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, 13790 + ... + 17147.

It is an arithmetic number, because the mean of its divisors is an integer number (6868236).

Almost surely, 2^51943223 is an apocalyptic number.

51943223 is a deficient number, since it is larger than the sum of its proper divisors (3002665).

51943223 is a wasteful number, since it uses less digits than its factorization.

51943223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31033.

The product of its digits is 6480, while the sum is 29.

The square root of 51943223 is about 7207.1646991032. The cubic root of 51943223 is about 373.1152195520.

The spelling of 51943223 in words is "fifty-one million, nine hundred forty-three thousand, two hundred twenty-three".