5616521005 has 24 divisors (see below), whose sum is σ = 6946921800. Its totient is φ = 4359156480.

The previous prime is 5616521003. The next prime is 5616521021. The reversal of 5616521005 is 5001256165.

It can be written as a sum of positive squares in 12 ways, for example, as 227346084 + 5389174921 = 15078^2 + 73411^2 .

It is not a de Polignac number, because 5616521005 - 2¹ = 5616521003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5616521003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2880771 + ... + 2882719.

It is an arithmetic number, because the mean of its divisors is an integer number (289455075).

Almost surely, 2^5616521005 is an apocalyptic number.

It is an amenable number.

5616521005 is a deficient number, since it is larger than the sum of its proper divisors (1330400795).

5616521005 is a wasteful number, since it uses less digits than its factorization.

5616521005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449 (or 2412 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 5616521005 is about 74943.4520488615. The cubic root of 5616521005 is about 1777.5526064125.

The spelling of 5616521005 in words is "five billion, six hundred sixteen million, five hundred twenty-one thousand, five".