51084219 has 8 divisors (see below), whose sum is σ = 71073792. Its totient is φ = 32575400.

The previous prime is 51084211. The next prime is 51084221. The reversal of 51084219 is 91248015.

It is a happy number.

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 51084219 - 2³ = 51084211 is a prime.

It is a super-2 number, since 2×51084219² = 5219194861679922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51084211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370107 + ... + 370244.

It is an arithmetic number, because the mean of its divisors is an integer number (8884224).

Almost surely, 2^51084219 is an apocalyptic number.

51084219 is a deficient number, since it is larger than the sum of its proper divisors (19989573).

51084219 is a wasteful number, since it uses less digits than its factorization.

51084219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740377.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 51084219 is about 7147.3225056660. The cubic root of 51084219 is about 371.0469955458.

The spelling of 51084219 in words is "fifty-one million, eighty-four thousand, two hundred nineteen".