545964481 has 2 divisors, whose sum is σ = 545964482. Its totient is φ = 545964480.

The previous prime is 545964479. The next prime is 545964521. The reversal of 545964481 is 184469545.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 509856400 + 36108081 = 22580^2 + 6009^2 .

It is a cyclic number.

It is not a de Polignac number, because 545964481 - 2¹ = 545964479 is a prime.

It is a super-2 number, since 2×545964481² = 596154429027198722, which contains 22 as substring.

Together with 545964479, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (545964431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272982240 + 272982241.

It is an arithmetic number, because the mean of its divisors is an integer number (272982241).

Almost surely, 2^545964481 is an apocalyptic number.

It is an amenable number.

545964481 is a deficient number, since it is larger than the sum of its proper divisors (1).

545964481 is an equidigital number, since it uses as much as digits as its factorization.

545964481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 46.

The square root of 545964481 is about 23365.8828422981. The cubic root of 545964481 is about 817.3124788805.

The spelling of 545964481 in words is "five hundred forty-five million, nine hundred sixty-four thousand, four hundred eighty-one".