2520537885 has 64 divisors (see below), whose sum is σ = 4559708160. Its totient is φ = 1320883200.

The previous prime is 2520537883. The next prime is 2520537889. The reversal of 2520537885 is 5887350252.

2520537885 is a `hidden beast` number, since 2 + 520 + 53 + 78 + 8 + 5 = 666.

It is not a de Polignac number, because 2520537885 - 2¹ = 2520537883 is a prime.

It is a super-2 number, since 2×2520537885² = 12706222459440546450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2520537885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520537881) 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 63 ways as a sum of consecutive naturals, for example, 1936735 + ... + 1938035.

It is an arithmetic number, because the mean of its divisors is an integer number (71245440).

Almost surely, 2^2520537885 is an apocalyptic number.

It is an amenable number.

2520537885 is a deficient number, since it is larger than the sum of its proper divisors (2039170275).

2520537885 is a wasteful number, since it uses less digits than its factorization.

2520537885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555 (or 1549 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The square root of 2520537885 is about 50204.9587690300. The cubic root of 2520537885 is about 1360.9152369136.

The spelling of 2520537885 in words is "two billion, five hundred twenty million, five hundred thirty-seven thousand, eight hundred eighty-five".