5156665 has 8 divisors (see below), whose sum is σ = 6228360. Its totient is φ = 4098432.

The previous prime is 5156663. The next prime is 5156719. The reversal of 5156665 is 5666515.

It can be written as a sum of positive squares in 4 ways, for example, as 962361 + 4194304 = 981^2 + 2048^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5156665 - 2¹ = 5156663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5156665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5156663) 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, 2500 + ... + 4069.

It is an arithmetic number, because the mean of its divisors is an integer number (778545).

Almost surely, 2^5156665 is an apocalyptic number.

It is an amenable number.

5156665 is a deficient number, since it is larger than the sum of its proper divisors (1071695).

5156665 is a wasteful number, since it uses less digits than its factorization.

5156665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6731.

The product of its digits is 27000, while the sum is 34.

The square root of 5156665 is about 2270.8291437270. The cubic root of 5156665 is about 172.7652154957.

The spelling of 5156665 in words is "five million, one hundred fifty-six thousand, six hundred sixty-five".