2512081 has 12 divisors (see below), whose sum is σ = 2975476. Its totient is φ = 2106720.

The previous prime is 2512063. The next prime is 2512087. The reversal of 2512081 is 1802152.

It can be written as a sum of positive squares in 2 ways, for example, as 435600 + 2076481 = 660^2 + 1441^2 .

It is not a de Polignac number, because 2512081 - 2⁷ = 2511953 is a prime.

It is a super-2 number, since 2×2512081² = 12621101901122, 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 (2512087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 775 + ... + 2371.

2^2512081 is an apocalyptic number.

It is an amenable number.

2512081 is a deficient number, since it is larger than the sum of its proper divisors (463395).

2512081 is a wasteful number, since it uses less digits than its factorization.

2512081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632 (or 1621 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2512081 is about 1584.9545734815. The cubic root of 2512081 is about 135.9391488152.

It can be divided in two parts, 251 and 2081, that added together give a palindrome (2332).

The spelling of 2512081 in words is "two million, five hundred twelve thousand, eighty-one".