2520205124 has 24 divisors (see below), whose sum is σ = 4532400600. Its totient is φ = 1225276416.

The previous prime is 2520205099. The next prime is 2520205139. The reversal of 2520205124 is 4215020252.

It can be written as a sum of positive squares in 4 ways, for example, as 1103435524 + 1416769600 = 33218^2 + 37640^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2520205124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284084 + ... + 292820.

It is an arithmetic number, because the mean of its divisors is an integer number (188850025).

Almost surely, 2^2520205124 is an apocalyptic number.

It is an amenable number.

2520205124 is a deficient number, since it is larger than the sum of its proper divisors (2012195476).

2520205124 is a wasteful number, since it uses less digits than its factorization.

2520205124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10727 (or 10725 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 2520205124 is about 50201.6446344141. The cubic root of 2520205124 is about 1360.8553450088.

Adding to 2520205124 its reverse (4215020252), we get a palindrome (6735225376).

The spelling of 2520205124 in words is "two billion, five hundred twenty million, two hundred five thousand, one hundred twenty-four".