5091505 has 4 divisors (see below), whose sum is σ = 6109812. Its totient is φ = 4073200.

The previous prime is 5091491. The next prime is 5091509. The reversal of 5091505 is 5051905.

5091505 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5051905 = 5 ⋅1010381.

It can be written as a sum of positive squares in 2 ways, for example, as 2509056 + 2582449 = 1584^2 + 1607^2 .

It is not a de Polignac number, because 5091505 - 2⁵ = 5091473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5091505.

It is not an unprimeable number, because it can be changed into a prime (5091509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509146 + ... + 509155.

It is an arithmetic number, because the mean of its divisors is an integer number (1527453).

Almost surely, 2^5091505 is an apocalyptic number.

It is an amenable number.

5091505 is a deficient number, since it is larger than the sum of its proper divisors (1018307).

5091505 is a wasteful number, since it uses less digits than its factorization.

5091505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018306.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 5091505 is about 2256.4363496452. The cubic root of 5091505 is about 172.0344373988.

The spelling of 5091505 in words is "five million, ninety-one thousand, five hundred five".