2536516521 has 96 divisors (see below), whose sum is σ = 4793997312. Its totient is φ = 1253134080.

The previous prime is 2536516519. The next prime is 2536516607. The reversal of 2536516521 is 1256156352.

It is not a de Polignac number, because 2536516521 - 2¹ = 2536516519 is a prime.

It is a super-2 number, since 2×2536516521² = 12867832122611886882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2536516421) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3713446 + ... + 3714128.

It is an arithmetic number, because the mean of its divisors is an integer number (49937472).

Almost surely, 2^2536516521 is an apocalyptic number.

2536516521 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2536516521 is a deficient number, since it is larger than the sum of its proper divisors (2257480791).

2536516521 is a wasteful number, since it uses less digits than its factorization.

2536516521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963 (or 960 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 2536516521 is about 50363.8414043250. The cubic root of 2536516521 is about 1363.7849655498.

The spelling of 2536516521 in words is "two billion, five hundred thirty-six million, five hundred sixteen thousand, five hundred twenty-one".