2520704773 has 4 divisors (see below), whose sum is σ = 2545662348. Its totient is φ = 2495747200.

The previous prime is 2520704701. The next prime is 2520704821. The reversal of 2520704773 is 3774070252.

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 1842727329 + 677977444 = 42927^2 + 26038^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520704773 - 2²⁹ = 1983833861 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 (2520704873) 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, 12478636 + ... + 12478837.

It is an arithmetic number, because the mean of its divisors is an integer number (636415587).

Almost surely, 2^2520704773 is an apocalyptic number.

It is an amenable number.

2520704773 is a deficient number, since it is larger than the sum of its proper divisors (24957575).

2520704773 is a wasteful number, since it uses less digits than its factorization.

2520704773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24957574.

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 2520704773 is about 50206.6208084153. The cubic root of 2520704773 is about 1360.9452722235.

The spelling of 2520704773 in words is "two billion, five hundred twenty million, seven hundred four thousand, seven hundred seventy-three".