2520520301523 has 48 divisors (see below), whose sum is σ = 3974144998560. Its totient is φ = 1416444019200.

The previous prime is 2520520301521. The next prime is 2520520301549. The reversal of 2520520301523 is 3251030250252.

It is not a de Polignac number, because 2520520301523 - 2¹ = 2520520301521 is a prime.

It is a super-3 number, since 3×2520520301523³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2520520301521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61215063 + ... + 61256223.

It is an arithmetic number, because the mean of its divisors is an integer number (82794687470).

Almost surely, 2^{2520520301523} is an apocalyptic number.

2520520301523 is a deficient number, since it is larger than the sum of its proper divisors (1453624697037).

2520520301523 is a wasteful number, since it uses less digits than its factorization.

2520520301523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48068 (or 48061 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 2520520301523 its reverse (3251030250252), we get a palindrome (5771550551775).

The spelling of 2520520301523 in words is "two trillion, five hundred twenty billion, five hundred twenty million, three hundred one thousand, five hundred twenty-three".