20115006 has 16 divisors (see below), whose sum is σ = 40291344. Its totient is φ = 6694784.

The previous prime is 20114993. The next prime is 20115023. The reversal of 20115006 is 60051102.

It is a super-2 number, since 2×20115006² = 809226932760072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2470 + ... + 6806.

It is an arithmetic number, because the mean of its divisors is an integer number (2518209).

Almost surely, 2^20115006 is an apocalyptic number.

20115006 is an abundant number, since it is smaller than the sum of its proper divisors (20176338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20115006 is a wasteful number, since it uses less digits than its factorization.

20115006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5115.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 20115006 is about 4484.9755852178. The cubic root of 20115006 is about 271.9610580784.

Adding to 20115006 its reverse (60051102), we get a palindrome (80166108).

The spelling of 20115006 in words is "twenty million, one hundred fifteen thousand, six".