5527601721 has 24 divisors (see below), whose sum is σ = 8096824320. Its totient is φ = 3633499296.

The previous prime is 5527601699. The next prime is 5527601747. The reversal of 5527601721 is 1271067255.

5527601721 is a `hidden beast` number, since 5 + 5 + 27 + 601 + 7 + 21 = 666.

It is not a de Polignac number, because 5527601721 - 2⁵ = 5527601689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5527608721) 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, 171475 + ... + 201143.

It is an arithmetic number, because the mean of its divisors is an integer number (337367680).

Almost surely, 2^5527601721 is an apocalyptic number.

It is an amenable number.

5527601721 is a deficient number, since it is larger than the sum of its proper divisors (2569222599).

5527601721 is a wasteful number, since it uses less digits than its factorization.

5527601721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29965 (or 29962 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 5527601721 is about 74347.8427461080. The cubic root of 5527601721 is about 1768.1220808709.

Adding to 5527601721 its reverse (1271067255), we get a palindrome (6798668976).

The spelling of 5527601721 in words is "five billion, five hundred twenty-seven million, six hundred one thousand, seven hundred twenty-one".