5501768021 has 8 divisors (see below), whose sum is σ = 5982845400. Its totient is φ = 5038184448.

The previous prime is 5501768011. The next prime is 5501768023. The reversal of 5501768021 is 1208671055.

It can be written as a sum of positive squares in 4 ways, for example, as 2503000900 + 2998767121 = 50030^2 + 54761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5501768021 - 2¹⁰ = 5501766997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5501768023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4372796 + ... + 4374053.

It is an arithmetic number, because the mean of its divisors is an integer number (747855675).

Almost surely, 2^5501768021 is an apocalyptic number.

It is an amenable number.

5501768021 is a deficient number, since it is larger than the sum of its proper divisors (481077379).

5501768021 is a wasteful number, since it uses less digits than its factorization.

5501768021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8746903.

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 5501768021 is about 74173.9039083154. The cubic root of 5501768021 is about 1765.3632907326.

The spelling of 5501768021 in words is "five billion, five hundred one million, seven hundred sixty-eight thousand, twenty-one".