2513325649 has 4 divisors (see below), whose sum is σ = 2513587636. Its totient is φ = 2513063664.

The previous prime is 2513325631. The next prime is 2513325653. The reversal of 2513325649 is 9465233152.

2513325649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1680426049 + 832899600 = 40993^2 + 28860^2 .

It is a cyclic number.

It is not a de Polignac number, because 2513325649 - 2¹¹ = 2513323601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2513025649) 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, 116034 + ... + 135979.

It is an arithmetic number, because the mean of its divisors is an integer number (628396909).

Almost surely, 2^2513325649 is an apocalyptic number.

It is an amenable number.

2513325649 is a deficient number, since it is larger than the sum of its proper divisors (261987).

2513325649 is an equidigital number, since it uses as much as digits as its factorization.

2513325649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261986.

The product of its digits is 194400, while the sum is 40.

The square root of 2513325649 is about 50133.0793887629. The cubic root of 2513325649 is about 1359.6159615260.

The spelling of 2513325649 in words is "two billion, five hundred thirteen million, three hundred twenty-five thousand, six hundred forty-nine".