5126665 has 4 divisors (see below), whose sum is σ = 6152004. Its totient is φ = 4101328.

The previous prime is 5126657. The next prime is 5126669. The reversal of 5126665 is 5666215.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2948089 + 2178576 = 1717^2 + 1476^2 .

It is a cyclic number.

It is not a de Polignac number, because 5126665 - 2³ = 5126657 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5126669) 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, 512662 + ... + 512671.

It is an arithmetic number, because the mean of its divisors is an integer number (1538001).

Almost surely, 2^5126665 is an apocalyptic number.

It is an amenable number.

5126665 is a deficient number, since it is larger than the sum of its proper divisors (1025339).

5126665 is a wasteful number, since it uses less digits than its factorization.

5126665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025338.

The product of its digits is 10800, while the sum is 31.

The square root of 5126665 is about 2264.2139916536. The cubic root of 5126665 is about 172.4295308324.

The spelling of 5126665 in words is "five million, one hundred twenty-six thousand, six hundred sixty-five".