51889197 has 8 divisors (see below), whose sum is σ = 69253056. Its totient is φ = 34559072.

The previous prime is 51889181. The next prime is 51889217. The reversal of 51889197 is 79198815.

51889197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51889197 - 2⁴ = 51889181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51889147) 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 7 ways as a sum of consecutive naturals, for example, 4593 + ... + 11174.

It is an arithmetic number, because the mean of its divisors is an integer number (8656632).

Almost surely, 2^51889197 is an apocalyptic number.

It is an amenable number.

51889197 is a deficient number, since it is larger than the sum of its proper divisors (17363859).

51889197 is a wasteful number, since it uses less digits than its factorization.

51889197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16867.

The product of its digits is 181440, while the sum is 48.

The square root of 51889197 is about 7203.4156481491. The cubic root of 51889197 is about 372.9858159810.

The spelling of 51889197 in words is "fifty-one million, eight hundred eighty-nine thousand, one hundred ninety-seven".