51418289 has 8 divisors (see below), whose sum is σ = 55464192. Its totient is φ = 47385360.

The previous prime is 51418273. The next prime is 51418331. The reversal of 51418289 is 98281415.

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 51418289 - 2⁴ = 51418273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51418219) 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, 5984 + ... + 11774.

It is an arithmetic number, because the mean of its divisors is an integer number (6933024).

Almost surely, 2^51418289 is an apocalyptic number.

It is an amenable number.

51418289 is a deficient number, since it is larger than the sum of its proper divisors (4045903).

51418289 is a wasteful number, since it uses less digits than its factorization.

51418289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6487.

The product of its digits is 23040, while the sum is 38.

The square root of 51418289 is about 7170.6547120887. The cubic root of 51418289 is about 371.8540708886.

The spelling of 51418289 in words is "fifty-one million, four hundred eighteen thousand, two hundred eighty-nine".