5527720521 has 12 divisors (see below), whose sum is σ = 8404721520. Its totient is φ = 3491191800.

The previous prime is 5527720511. The next prime is 5527720547. The reversal of 5527720521 is 1250277255.

It is not a de Polignac number, because 5527720521 - 2²⁶ = 5460611657 is a prime.

It is a super-2 number, since 2×5527720521² = 61111388316569022882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5527720501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16162755 + ... + 16163096.

It is an arithmetic number, because the mean of its divisors is an integer number (700393460).

Almost surely, 2^5527720521 is an apocalyptic number.

It is an amenable number.

5527720521 is a deficient number, since it is larger than the sum of its proper divisors (2877000999).

5527720521 is a wasteful number, since it uses less digits than its factorization.

5527720521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32325876 (or 32325873 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

The square root of 5527720521 is about 74348.6416890046. The cubic root of 5527720521 is about 1768.1347476903.

Adding to 5527720521 its reverse (1250277255), we get a palindrome (6777997776).

The spelling of 5527720521 in words is "five billion, five hundred twenty-seven million, seven hundred twenty thousand, five hundred twenty-one".