51366345 has 8 divisors (see below), whose sum is σ = 82186176. Its totient is φ = 27395376.

The previous prime is 51366281. The next prime is 51366379. The reversal of 51366345 is 54366315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51366345 - 2⁶ = 51366281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1712197 + ... + 1712226.

It is an arithmetic number, because the mean of its divisors is an integer number (10273272).

Almost surely, 2^51366345 is an apocalyptic number.

It is an amenable number.

51366345 is a deficient number, since it is larger than the sum of its proper divisors (30819831).

51366345 is a wasteful number, since it uses less digits than its factorization.

51366345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3424431.

The product of its digits is 32400, while the sum is 33.

The square root of 51366345 is about 7167.0318124032. The cubic root of 51366345 is about 371.7288100379.

The spelling of 51366345 in words is "fifty-one million, three hundred sixty-six thousand, three hundred forty-five".