5216521757 has 8 divisors (see below), whose sum is σ = 5616993600. Its totient is φ = 4826451904.

The previous prime is 5216521733. The next prime is 5216521771. The reversal of 5216521757 is 7571256125.

It is a happy number.

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 5216521757 - 2¹² = 5216517661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5216521777) 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, 2599457 + ... + 2601462.

It is an arithmetic number, because the mean of its divisors is an integer number (702124200).

Almost surely, 2^5216521757 is an apocalyptic number.

It is an amenable number.

5216521757 is a deficient number, since it is larger than the sum of its proper divisors (400471843).

5216521757 is a wasteful number, since it uses less digits than its factorization.

5216521757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200995.

The product of its digits is 147000, while the sum is 41.

The square root of 5216521757 is about 72225.4924316892. The cubic root of 5216521757 is about 1734.3111159726.

The spelling of 5216521757 in words is "five billion, two hundred sixteen million, five hundred twenty-one thousand, seven hundred fifty-seven".