5457887521 has 2 divisors, whose sum is σ = 5457887522. Its totient is φ = 5457887520.

The previous prime is 5457887509. The next prime is 5457887543. The reversal of 5457887521 is 1257887545.

5457887521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5354580625 + 103306896 = 73175^2 + 10164^2 .

It is a cyclic number.

It is not a de Polignac number, because 5457887521 - 2¹¹ = 5457885473 is a prime.

It is a super-4 number, since 4×5457887521⁴ (a number of 40 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (5457807521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2728943760 + 2728943761.

It is an arithmetic number, because the mean of its divisors is an integer number (2728943761).

Almost surely, 2^5457887521 is an apocalyptic number.

It is an amenable number.

5457887521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5457887521 is an equidigital number, since it uses as much as digits as its factorization.

5457887521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3136000, while the sum is 52.

The square root of 5457887521 is about 73877.5170197266. The cubic root of 5457887521 is about 1760.6574163567.

The spelling of 5457887521 in words is "five billion, four hundred fifty-seven million, eight hundred eighty-seven thousand, five hundred twenty-one".