5217711521 has 8 divisors (see below), whose sum is σ = 5710593504. Its totient is φ = 4727920320.

The previous prime is 5217711509. The next prime is 5217711559. The reversal of 5217711521 is 1251177125.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5217711521 is a prime.

It is a super-2 number, since 2×5217711521² = 54449027032752266882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5217713521) 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, 769160 + ... + 775913.

It is an arithmetic number, because the mean of its divisors is an integer number (713824188).

Almost surely, 2^5217711521 is an apocalyptic number.

It is an amenable number.

5217711521 is a deficient number, since it is larger than the sum of its proper divisors (492881983).

5217711521 is a wasteful number, since it uses less digits than its factorization.

5217711521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545391.

The product of its digits is 4900, while the sum is 32.

The square root of 5217711521 is about 72233.7284168552. The cubic root of 5217711521 is about 1734.4429575952.

Adding to 5217711521 its reverse (1251177125), we get a palindrome (6468888646).

The spelling of 5217711521 in words is "five billion, two hundred seventeen million, seven hundred eleven thousand, five hundred twenty-one".