51345165 has 8 divisors (see below), whose sum is σ = 82152288. Its totient is φ = 27384080.

The previous prime is 51345157. The next prime is 51345169. The reversal of 51345165 is 56154315.

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

It is not a de Polignac number, because 51345165 - 2³ = 51345157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51345169) 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, 1711491 + ... + 1711520.

It is an arithmetic number, because the mean of its divisors is an integer number (10269036).

Almost surely, 2^51345165 is an apocalyptic number.

It is an amenable number.

51345165 is a deficient number, since it is larger than the sum of its proper divisors (30807123).

51345165 is a wasteful number, since it uses less digits than its factorization.

51345165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423019.

The product of its digits is 9000, while the sum is 30.

The square root of 51345165 is about 7165.5540609223. The cubic root of 51345165 is about 371.6777110899.

The spelling of 51345165 in words is "fifty-one million, three hundred forty-five thousand, one hundred sixty-five".