51750165 has 8 divisors (see below), whose sum is σ = 82800288. Its totient is φ = 27600080.

The previous prime is 51750163. The next prime is 51750217. The reversal of 51750165 is 56105715.

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

It is not a de Polignac number, because 51750165 - 2¹ = 51750163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51750163) 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, 1724991 + ... + 1725020.

It is an arithmetic number, because the mean of its divisors is an integer number (10350036).

Almost surely, 2^51750165 is an apocalyptic number.

It is an amenable number.

51750165 is a deficient number, since it is larger than the sum of its proper divisors (31050123).

51750165 is a wasteful number, since it uses less digits than its factorization.

51750165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450019.

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 51750165 is about 7193.7587532527. The cubic root of 51750165 is about 372.6523917409.

It can be divided in two parts, 51750 and 165, that added together give a palindrome (51915).

The spelling of 51750165 in words is "fifty-one million, seven hundred fifty thousand, one hundred sixty-five".