545222471 has 2 divisors, whose sum is σ = 545222472. Its totient is φ = 545222470.

The previous prime is 545222443. The next prime is 545222507. The reversal of 545222471 is 174222545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545222471 - 2¹⁸ = 544960327 is a prime.

It is a super-3 number, since 3×545222471³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545222441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272611235 + 272611236.

It is an arithmetic number, because the mean of its divisors is an integer number (272611236).

Almost surely, 2^545222471 is an apocalyptic number.

545222471 is a deficient number, since it is larger than the sum of its proper divisors (1).

545222471 is an equidigital number, since it uses as much as digits as its factorization.

545222471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22400, while the sum is 32.

The square root of 545222471 is about 23349.9993790150. Note that the first 3 decimals coincide. The cubic root of 545222471 is about 816.9420463699.

The spelling of 545222471 in words is "five hundred forty-five million, two hundred twenty-two thousand, four hundred seventy-one".