2521315535 has 16 divisors (see below), whose sum is σ = 3202705440. Its totient is φ = 1902203520.

The previous prime is 2521315483. The next prime is 2521315547. The reversal of 2521315535 is 5355131252.

It is not a de Polignac number, because 2521315535 - 2¹² = 2521311439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195956 + ... + 208425.

It is an arithmetic number, because the mean of its divisors is an integer number (200169090).

Almost surely, 2^2521315535 is an apocalyptic number.

2521315535 is a deficient number, since it is larger than the sum of its proper divisors (681389905).

2521315535 is a wasteful number, since it uses less digits than its factorization.

2521315535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404458.

The product of its digits is 22500, while the sum is 32.

The square root of 2521315535 is about 50212.7029246584. The cubic root of 2521315535 is about 1361.0551815024.

Adding to 2521315535 its reverse (5355131252), we get a palindrome (7876446787).

The spelling of 2521315535 in words is "two billion, five hundred twenty-one million, three hundred fifteen thousand, five hundred thirty-five".