2520279385 has 32 divisors (see below), whose sum is σ = 3368171520. Its totient is φ = 1797811200.

The previous prime is 2520279379. The next prime is 2520279451. The reversal of 2520279385 is 5839720252.

It is not a de Polignac number, because 2520279385 - 2¹⁷ = 2520148313 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1851105 + ... + 1852465.

It is an arithmetic number, because the mean of its divisors is an integer number (105255360).

Almost surely, 2^2520279385 is an apocalyptic number.

It is an amenable number.

2520279385 is a deficient number, since it is larger than the sum of its proper divisors (847892135).

2520279385 is a wasteful number, since it uses less digits than its factorization.

2520279385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 2520279385 is about 50202.3842561287. The cubic root of 2520279385 is about 1360.8687113131.

The spelling of 2520279385 in words is "two billion, five hundred twenty million, two hundred seventy-nine thousand, three hundred eighty-five".