5455142521 has 2 divisors, whose sum is σ = 5455142522. Its totient is φ = 5455142520.

The previous prime is 5455142513. The next prime is 5455142533. The reversal of 5455142521 is 1252415545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2928974400 + 2526168121 = 54120^2 + 50261^2 .

It is a cyclic number.

It is not a de Polignac number, because 5455142521 - 2³ = 5455142513 is a prime.

It is not a weakly prime, because it can be changed into another prime (5455142591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2727571260 + 2727571261.

It is an arithmetic number, because the mean of its divisors is an integer number (2727571261).

Almost surely, 2^5455142521 is an apocalyptic number.

It is an amenable number.

5455142521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5455142521 is an equidigital number, since it uses as much as digits as its factorization.

5455142521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40000, while the sum is 34.

The square root of 5455142521 is about 73858.9366359955. The cubic root of 5455142521 is about 1760.3621974308.

The spelling of 5455142521 in words is "five billion, four hundred fifty-five million, one hundred forty-two thousand, five hundred twenty-one".