5217627821 has 8 divisors (see below), whose sum is σ = 5971515264. Its totient is φ = 4465868400.

The previous prime is 5217627797. The next prime is 5217627847. The reversal of 5217627821 is 1287267125.

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

It is not a de Polignac number, because 5217627821 - 2¹⁸ = 5217365677 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 (5217627421) 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, 526745 + ... + 536558.

It is an arithmetic number, because the mean of its divisors is an integer number (746439408).

Almost surely, 2^5217627821 is an apocalyptic number.

It is an amenable number.

5217627821 is a deficient number, since it is larger than the sum of its proper divisors (753887443).

5217627821 is a wasteful number, since it uses less digits than its factorization.

5217627821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064011.

The product of its digits is 94080, while the sum is 41.

The square root of 5217627821 is about 72233.1490452964. The cubic root of 5217627821 is about 1734.4336831811.

It can be divided in two parts, 52176 and 27821, that added together give a palindrome (79997).

The spelling of 5217627821 in words is "five billion, two hundred seventeen million, six hundred twenty-seven thousand, eight hundred twenty-one".