5507706721 has 4 divisors (see below), whose sum is σ = 6008407344. Its totient is φ = 5007006100.

The previous prime is 5507706713. The next prime is 5507706749. The reversal of 5507706721 is 1276077055.

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 5507706721 - 2³ = 5507706713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5507706761) 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, 250350295 + ... + 250350316.

It is an arithmetic number, because the mean of its divisors is an integer number (1502101836).

Almost surely, 2^5507706721 is an apocalyptic number.

It is an amenable number.

5507706721 is a deficient number, since it is larger than the sum of its proper divisors (500700623).

5507706721 is a wasteful number, since it uses less digits than its factorization.

5507706721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500700622.

The product of its (nonzero) digits is 102900, while the sum is 40.

The square root of 5507706721 is about 74213.9253846608. The cubic root of 5507706721 is about 1765.9982498346.

The spelling of 5507706721 in words is "five billion, five hundred seven million, seven hundred six thousand, seven hundred twenty-one".