5547130621 has 2 divisors, whose sum is σ = 5547130622. Its totient is φ = 5547130620.

The previous prime is 5547130609. The next prime is 5547130627. The reversal of 5547130621 is 1260317455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2786784100 + 2760346521 = 52790^2 + 52539^2 .

It is a cyclic number.

It is not a de Polignac number, because 5547130621 - 2⁹ = 5547130109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5547130627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2773565310 + 2773565311.

It is an arithmetic number, because the mean of its divisors is an integer number (2773565311).

Almost surely, 2^5547130621 is an apocalyptic number.

It is an amenable number.

5547130621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5547130621 is an equidigital number, since it uses as much as digits as its factorization.

5547130621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 5547130621 is about 74479.0616280844. The cubic root of 5547130621 is about 1770.2018794707.

The spelling of 5547130621 in words is "five billion, five hundred forty-seven million, one hundred thirty thousand, six hundred twenty-one".