51164165 has 16 divisors (see below), whose sum is σ = 66358656. Its totient is φ = 37646400.

The previous prime is 51164159. The next prime is 51164189. The reversal of 51164165 is 56146115.

It is not a de Polignac number, because 51164165 - 2¹² = 51160069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18950 + ... + 21480.

It is an arithmetic number, because the mean of its divisors is an integer number (4147416).

Almost surely, 2^51164165 is an apocalyptic number.

It is an amenable number.

51164165 is a deficient number, since it is larger than the sum of its proper divisors (15194491).

51164165 is a wasteful number, since it uses less digits than its factorization.

51164165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860.

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

The square root of 51164165 is about 7152.9130429497. The cubic root of 51164165 is about 371.2404555660.

The spelling of 51164165 in words is "fifty-one million, one hundred sixty-four thousand, one hundred sixty-five".