51027243 has 4 divisors (see below), whose sum is σ = 68036328. Its totient is φ = 34018160.

The previous prime is 51027239. The next prime is 51027253. The reversal of 51027243 is 34272015.

51027243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51027243 - 2² = 51027239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51027253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8504538 + ... + 8504543.

It is an arithmetic number, because the mean of its divisors is an integer number (17009082).

Almost surely, 2^51027243 is an apocalyptic number.

51027243 is a deficient number, since it is larger than the sum of its proper divisors (17009085).

51027243 is a wasteful number, since it uses less digits than its factorization.

51027243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17009084.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 51027243 is about 7143.3355654064. The cubic root of 51027243 is about 370.9089970367.

Adding to 51027243 its reverse (34272015), we get a palindrome (85299258).

The spelling of 51027243 in words is "fifty-one million, twenty-seven thousand, two hundred forty-three".