51360851 has 4 divisors (see below), whose sum is σ = 51377400. Its totient is φ = 51344304.

The previous prime is 51360839. The next prime is 51360853. The reversal of 51360851 is 15806315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51360851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51360853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2066 + ... + 10343.

It is an arithmetic number, because the mean of its divisors is an integer number (12844350).

Almost surely, 2^51360851 is an apocalyptic number.

51360851 is a deficient number, since it is larger than the sum of its proper divisors (16549).

51360851 is a wasteful number, since it uses less digits than its factorization.

51360851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16548.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 51360851 is about 7166.6485193569. The cubic root of 51360851 is about 371.7155565422.

The spelling of 51360851 in words is "fifty-one million, three hundred sixty thousand, eight hundred fifty-one".