5221611761 has 8 divisors (see below), whose sum is σ = 5529784320. Its totient is φ = 4913552448.

The previous prime is 5221611757. The next prime is 5221611767. The reversal of 5221611761 is 1671161225.

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 5221611761 - 2² = 5221611757 is a prime.

It is a super-2 number, since 2×5221611761² = 54530458765227042242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5221611767) 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, 78080 + ... + 128606.

It is an arithmetic number, because the mean of its divisors is an integer number (691223040).

Almost surely, 2^5221611761 is an apocalyptic number.

It is an amenable number.

5221611761 is a deficient number, since it is larger than the sum of its proper divisors (308172559).

5221611761 is a wasteful number, since it uses less digits than its factorization.

5221611761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56623.

The product of its digits is 5040, while the sum is 32.

The square root of 5221611761 is about 72260.7207340198. The cubic root of 5221611761 is about 1734.8750153996.

Adding to 5221611761 its reverse (1671161225), we get a palindrome (6892772986).

The spelling of 5221611761 in words is "five billion, two hundred twenty-one million, six hundred eleven thousand, seven hundred sixty-one".