2521116539 has 8 divisors (see below), whose sum is σ = 2565852912. Its totient is φ = 2476656000.

The previous prime is 2521116487. The next prime is 2521116547. The reversal of 2521116539 is 9356111252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2521116539 - 2¹² = 2521112443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2521116499 and 2521116508.

It is not an unprimeable number, because it can be changed into a prime (2521116569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50474 + ... + 87119.

It is an arithmetic number, because the mean of its divisors is an integer number (320731614).

Almost surely, 2^2521116539 is an apocalyptic number.

2521116539 is a deficient number, since it is larger than the sum of its proper divisors (44736373).

2521116539 is a wasteful number, since it uses less digits than its factorization.

2521116539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137917.

The product of its digits is 16200, while the sum is 35.

The square root of 2521116539 is about 50210.7213551050. The cubic root of 2521116539 is about 1361.0193732561.

The spelling of 2521116539 in words is "two billion, five hundred twenty-one million, one hundred sixteen thousand, five hundred thirty-nine".