51675161 has 4 divisors (see below), whose sum is σ = 51843792. Its totient is φ = 51506532.

The previous prime is 51675139. The next prime is 51675163. The reversal of 51675161 is 16157615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51675161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51675163) 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, 83855 + ... + 84468.

It is an arithmetic number, because the mean of its divisors is an integer number (12960948).

Almost surely, 2^51675161 is an apocalyptic number.

It is an amenable number.

51675161 is a deficient number, since it is larger than the sum of its proper divisors (168631).

51675161 is a wasteful number, since it uses less digits than its factorization.

51675161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168630.

The product of its digits is 6300, while the sum is 32.

The square root of 51675161 is about 7188.5437329128. The cubic root of 51675161 is about 372.4722703560.

The spelling of 51675161 in words is "fifty-one million, six hundred seventy-five thousand, one hundred sixty-one".