51814214 has 4 divisors (see below), whose sum is σ = 77721324. Its totient is φ = 25907106.

The previous prime is 51814177. The next prime is 51814223. The reversal of 51814214 is 41241815.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41241815 = 5 ⋅8248363.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12953552 + ... + 12953555.

It is an arithmetic number, because the mean of its divisors is an integer number (19430331).

Almost surely, 2^51814214 is an apocalyptic number.

51814214 is a deficient number, since it is larger than the sum of its proper divisors (25907110).

51814214 is a wasteful number, since it uses less digits than its factorization.

51814214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25907109.

The product of its digits is 1280, while the sum is 26.

The square root of 51814214 is about 7198.2090828205. The cubic root of 51814214 is about 372.8060670834.

The spelling of 51814214 in words is "fifty-one million, eight hundred fourteen thousand, two hundred fourteen".