15005005 has 4 divisors (see below), whose sum is σ = 18006012. Its totient is φ = 12004000.

The previous prime is 15004991. The next prime is 15005009. The reversal of 15005005 is 50050051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50050051 = 4621 ⋅10831.

It can be written as a sum of positive squares in 2 ways, for example, as 6320196 + 8684809 = 2514^2 + 2947^2 .

It is not a de Polignac number, because 15005005 - 2⁵ = 15004973 is a prime.

It is a Duffinian number.

15005005 is a modest number, since divided by 5005 gives 15 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 15005005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15005009) 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, 1500496 + ... + 1500505.

It is an arithmetic number, because the mean of its divisors is an integer number (4501503).

Almost surely, 2^15005005 is an apocalyptic number.

It is an amenable number.

15005005 is a deficient number, since it is larger than the sum of its proper divisors (3001007).

15005005 is an equidigital number, since it uses as much as digits as its factorization.

15005005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001006.

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 15005005 is about 3873.6294350389. The cubic root of 15005005 is about 246.6486341416.

Adding to 15005005 its reverse (50050051), we get a palindrome (65055056).

The spelling of 15005005 in words is "fifteen million, five thousand, five".