5450545421 has 2 divisors, whose sum is σ = 5450545422. Its totient is φ = 5450545420.

The previous prime is 5450545403. The next prime is 5450545433. The reversal of 5450545421 is 1245450545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4360621225 + 1089924196 = 66035^2 + 33014^2 .

It is a cyclic number.

It is not a de Polignac number, because 5450545421 - 2¹⁰ = 5450544397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5450535421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2725272710 + 2725272711.

It is an arithmetic number, because the mean of its divisors is an integer number (2725272711).

Almost surely, 2^5450545421 is an apocalyptic number.

It is an amenable number.

5450545421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5450545421 is an equidigital number, since it uses as much as digits as its factorization.

5450545421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80000, while the sum is 35.

The square root of 5450545421 is about 73827.8092658857. The cubic root of 5450545421 is about 1759.8675671917.

Adding to 5450545421 its reverse (1245450545), we get a palindrome (6695995966).

The spelling of 5450545421 in words is "five billion, four hundred fifty million, five hundred forty-five thousand, four hundred twenty-one".