5501210665 has 4 divisors (see below), whose sum is σ = 6601452804. Its totient is φ = 4400968528.

The previous prime is 5501210647. The next prime is 5501210669. The reversal of 5501210665 is 5660121055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4132432656 + 1368778009 = 64284^2 + 36997^2 .

It is a cyclic number.

It is not a de Polignac number, because 5501210665 - 2⁷ = 5501210537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5501210669) 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, 550121062 + ... + 550121071.

It is an arithmetic number, because the mean of its divisors is an integer number (1650363201).

Almost surely, 2^5501210665 is an apocalyptic number.

It is an amenable number.

5501210665 is a deficient number, since it is larger than the sum of its proper divisors (1100242139).

5501210665 is a wasteful number, since it uses less digits than its factorization.

5501210665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100242138.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 5501210665 is about 74170.1467235976. The cubic root of 5501210665 is about 1765.3036754085.

The spelling of 5501210665 in words is "five billion, five hundred one million, two hundred ten thousand, six hundred sixty-five".