5520638601 has 9 divisors (see below), whose sum is σ = 7974577741. Its totient is φ = 3680277132.

The previous prime is 5520638593. The next prime is 5520638623. The reversal of 5520638601 is 1068360255.

The square root of 5520638601 is 74301.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 5520638601 - 2³ = 5520638593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5520238601) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 210520 + ... + 235286.

Almost surely, 2^5520638601 is an apocalyptic number.

5520638601 is the 74301-st square number.

5520638601 is the 37151-st centered octagonal number.

It is an amenable number.

5520638601 is a deficient number, since it is larger than the sum of its proper divisors (2453939140).

5520638601 is an frugal number, since it uses more digits than its factorization.

5520638601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49540 (or 24770 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The cubic root of 5520638601 is about 1767.3793344306.

Multiplying 5520638601 by its sum of digits (36), we get a square (198742989636 = 445806²).

Adding to 5520638601 its reverse (1068360255), we get a palindrome (6588998856).

The spelling of 5520638601 in words is "five billion, five hundred twenty million, six hundred thirty-eight thousand, six hundred one".