51982067 has 4 divisors (see below), whose sum is σ = 52205400. Its totient is φ = 51758736.

The previous prime is 51982037. The next prime is 51982069. The reversal of 51982067 is 76028915.

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 51982067 - 2¹⁰ = 51981043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51982067.

It is not an unprimeable number, because it can be changed into a prime (51982069) 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, 111317 + ... + 111782.

It is an arithmetic number, because the mean of its divisors is an integer number (13051350).

Almost surely, 2^51982067 is an apocalyptic number.

51982067 is a deficient number, since it is larger than the sum of its proper divisors (223333).

51982067 is a wasteful number, since it uses less digits than its factorization.

51982067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223332.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 51982067 is about 7209.8590138781. The cubic root of 51982067 is about 373.2082036185.

The spelling of 51982067 in words is "fifty-one million, nine hundred eighty-two thousand, sixty-seven".