51471383 has 4 divisors (see below), whose sum is σ = 51612000. Its totient is φ = 51330768.

The previous prime is 51471367. The next prime is 51471397. The reversal of 51471383 is 38317415.

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 51471383 - 2⁴ = 51471367 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 (51471353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69758 + ... + 70491.

It is an arithmetic number, because the mean of its divisors is an integer number (12903000).

Almost surely, 2^51471383 is an apocalyptic number.

51471383 is a deficient number, since it is larger than the sum of its proper divisors (140617).

51471383 is a wasteful number, since it uses less digits than its factorization.

51471383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140616.

The product of its digits is 10080, while the sum is 32.

The square root of 51471383 is about 7174.3559292803. The cubic root of 51471383 is about 371.9820177649.

Adding to 51471383 its reverse (38317415), we get a palindrome (89788798).

The spelling of 51471383 in words is "fifty-one million, four hundred seventy-one thousand, three hundred eighty-three".