5500553521 has 4 divisors (see below), whose sum is σ = 5507820532. Its totient is φ = 5493286512.

The previous prime is 5500553519. The next prime is 5500553543. The reversal of 5500553521 is 1253550055.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1253550055 = 5 ⋅250710011.

It can be written as a sum of positive squares in 2 ways, for example, as 1231237921 + 4269315600 = 35089^2 + 65340^2 .

It is a cyclic number.

It is not a de Polignac number, because 5500553521 - 2¹ = 5500553519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5500553321) 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, 3632370 + ... + 3633883.

It is an arithmetic number, because the mean of its divisors is an integer number (1376955133).

Almost surely, 2^5500553521 is an apocalyptic number.

It is an amenable number.

5500553521 is a deficient number, since it is larger than the sum of its proper divisors (7267011).

5500553521 is an equidigital number, since it uses as much as digits as its factorization.

5500553521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7267010.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 5500553521 is about 74165.7166148888. The cubic root of 5500553521 is about 1765.2333814930.

The spelling of 5500553521 in words is "five billion, five hundred million, five hundred fifty-three thousand, five hundred twenty-one".