2502785813 has 4 divisors (see below), whose sum is σ = 2730311808. Its totient is φ = 2275259820.

The previous prime is 2502785797. The next prime is 2502785839. The reversal of 2502785813 is 3185872052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2502785813 - 2⁴ = 2502785797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2502785893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113762981 + ... + 113763002.

It is an arithmetic number, because the mean of its divisors is an integer number (682577952).

Almost surely, 2^2502785813 is an apocalyptic number.

It is an amenable number.

2502785813 is a deficient number, since it is larger than the sum of its proper divisors (227525995).

2502785813 is a wasteful number, since it uses less digits than its factorization.

2502785813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227525994.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 2502785813 is about 50027.8503735669. The cubic root of 2502785813 is about 1357.7127451528.

The spelling of 2502785813 in words is "two billion, five hundred two million, seven hundred eighty-five thousand, eight hundred thirteen".