2512305 has 12 divisors (see below), whose sum is σ = 4354740. Its totient is φ = 1339872.

The previous prime is 2512303. The next prime is 2512331. The reversal of 2512305 is 5032152.

It is a happy number.

2512305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 992016 + 1520289 = 996^2 + 1233^2 .

It is not a de Polignac number, because 2512305 - 2¹ = 2512303 is a prime.

It is an Ulam number.

2512305 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2512303) 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 11 ways as a sum of consecutive naturals, for example, 27870 + ... + 27959.

It is an arithmetic number, because the mean of its divisors is an integer number (362895).

2^2512305 is an apocalyptic number.

It is an amenable number.

2512305 is a deficient number, since it is larger than the sum of its proper divisors (1842435).

2512305 is a wasteful number, since it uses less digits than its factorization.

2512305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55840 (or 55837 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2512305 is about 1585.0252363922. The cubic root of 2512305 is about 135.9431892189.

Adding to 2512305 its reverse (5032152), we get a palindrome (7544457).

It can be divided in two parts, 251 and 2305, that added together give a triangular number (2556 = T₇₁).

The spelling of 2512305 in words is "two million, five hundred twelve thousand, three hundred five".