2511005 has 24 divisors (see below), whose sum is σ = 3612888. Its totient is φ = 1669248.

The previous prime is 2511001. The next prime is 2511011. The reversal of 2511005 is 5001152.

It can be written as a sum of positive squares in 4 ways, for example, as 329476 + 2181529 = 574^2 + 1477^2 .

It is not a de Polignac number, because 2511005 - 2² = 2511001 is a prime.

It is a super-2 number, since 2×2511005² = 12610292220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2511001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8927 + ... + 9203.

It is an arithmetic number, because the mean of its divisors is an integer number (150537).

2^2511005 is an apocalyptic number.

It is an amenable number.

2511005 is a deficient number, since it is larger than the sum of its proper divisors (1101883).

2511005 is a wasteful number, since it uses less digits than its factorization.

2511005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 2511005 is about 1584.6150952203. The cubic root of 2511005 is about 135.9197370986.

Adding to 2511005 its reverse (5001152), we get a palindrome (7512157).

The spelling of 2511005 in words is "two million, five hundred eleven thousand, five".