51384045 has 8 divisors (see below), whose sum is σ = 82214496. Its totient is φ = 27404816.

The previous prime is 51384041. The next prime is 51384077. The reversal of 51384045 is 54048315.

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 51384045 - 2² = 51384041 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51384041) 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, 1712787 + ... + 1712816.

It is an arithmetic number, because the mean of its divisors is an integer number (10276812).

Almost surely, 2^51384045 is an apocalyptic number.

It is an amenable number.

51384045 is a deficient number, since it is larger than the sum of its proper divisors (30830451).

51384045 is a wasteful number, since it uses less digits than its factorization.

51384045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425611.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 51384045 is about 7168.2665268529. The cubic root of 51384045 is about 371.7715023516.

The spelling of 51384045 in words is "fifty-one million, three hundred eighty-four thousand, forty-five".