5506100061021 has 48 divisors (see below), whose sum is σ = 9498159740160. Its totient is φ = 3005251603200.

The previous prime is 5506100061019. The next prime is 5506100061023. The reversal of 5506100061021 is 1201600016055.

It is a happy number.

5506100061021 is a `hidden beast` number, since 550 + 6 + 1 + 0 + 0 + 0 + 6 + 102 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (5506100061019) and next prime (5506100061023).

It is not a de Polignac number, because 5506100061021 - 2¹ = 5506100061019 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5506100061023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1694616 + ... + 3726113.

It is an arithmetic number, because the mean of its divisors is an integer number (197878327920).

Almost surely, 2^{5506100061021} is an apocalyptic number.

It is an amenable number.

5506100061021 is a deficient number, since it is larger than the sum of its proper divisors (3992059679139).

5506100061021 is a wasteful number, since it uses less digits than its factorization.

5506100061021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421466 (or 5421463 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 5506100061021 its reverse (1201600016055), we get a palindrome (6707700077076).

The spelling of 5506100061021 in words is "five trillion, five hundred six billion, one hundred million, sixty-one thousand, twenty-one".