51997883 has 8 divisors (see below), whose sum is σ = 62921952. Its totient is φ = 41947776.

The previous prime is 51997873. The next prime is 51997901. The reversal of 51997883 is 38879915.

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 51997883 - 2²⁴ = 35220667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51997853) 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, 218360 + ... + 218597.

It is an arithmetic number, because the mean of its divisors is an integer number (7865244).

Almost surely, 2^51997883 is an apocalyptic number.

51997883 is a deficient number, since it is larger than the sum of its proper divisors (10924069).

51997883 is a wasteful number, since it uses less digits than its factorization.

51997883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436981.

The product of its digits is 544320, while the sum is 50.

The square root of 51997883 is about 7210.9557618945. The cubic root of 51997883 is about 373.2460504039.

The spelling of 51997883 in words is "fifty-one million, nine hundred ninety-seven thousand, eight hundred eighty-three".