5515540801 has 4 divisors (see below), whose sum is σ = 5693461504. Its totient is φ = 5337620100.

The previous prime is 5515540763. The next prime is 5515540819. The reversal of 5515540801 is 1080455155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5515540801 - 2²⁹ = 4978669889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5515540831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88960305 + ... + 88960366.

It is an arithmetic number, because the mean of its divisors is an integer number (1423365376).

Almost surely, 2^5515540801 is an apocalyptic number.

It is an amenable number.

5515540801 is a deficient number, since it is larger than the sum of its proper divisors (177920703).

5515540801 is a wasteful number, since it uses less digits than its factorization.

5515540801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177920702.

The product of its (nonzero) digits is 20000, while the sum is 34.

The square root of 5515540801 is about 74266.6870204939. The cubic root of 5515540801 is about 1766.8351630241.

Adding to 5515540801 its reverse (1080455155), we get a palindrome (6595995956).

The spelling of 5515540801 in words is "five billion, five hundred fifteen million, five hundred forty thousand, eight hundred one".