545455093 has 2 divisors, whose sum is σ = 545455094. Its totient is φ = 545455092.

The previous prime is 545455091. The next prime is 545455117. The reversal of 545455093 is 390554545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501670404 + 43784689 = 22398^2 + 6617^2 .

It is a cyclic number.

It is not a de Polignac number, because 545455093 - 2¹ = 545455091 is a prime.

Together with 545455091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545455091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272727546 + 272727547.

It is an arithmetic number, because the mean of its divisors is an integer number (272727547).

Almost surely, 2^545455093 is an apocalyptic number.

It is an amenable number.

545455093 is a deficient number, since it is larger than the sum of its proper divisors (1).

545455093 is an equidigital number, since it uses as much as digits as its factorization.

545455093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270000, while the sum is 40.

The square root of 545455093 is about 23354.9800470906. The cubic root of 545455093 is about 817.0582140398.

The spelling of 545455093 in words is "five hundred forty-five million, four hundred fifty-five thousand, ninety-three".