5054540021 has 2 divisors, whose sum is σ = 5054540022. Its totient is φ = 5054540020.

The previous prime is 5054540009. The next prime is 5054540039. The reversal of 5054540021 is 1200454505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3148780996 + 1905759025 = 56114^2 + 43655^2 .

It is a cyclic number.

It is not a de Polignac number, because 5054540021 - 2¹⁴ = 5054523637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5054540921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527270010 + 2527270011.

It is an arithmetic number, because the mean of its divisors is an integer number (2527270011).

Almost surely, 2^5054540021 is an apocalyptic number.

It is an amenable number.

5054540021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5054540021 is an equidigital number, since it uses as much as digits as its factorization.

5054540021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 5054540021 is about 71095.2883178625. The cubic root of 5054540021 is about 1716.1709508738.

Adding to 5054540021 its reverse (1200454505), we get a palindrome (6254994526).

The spelling of 5054540021 in words is "five billion, fifty-four million, five hundred forty thousand, twenty-one".