545263399 has 2 divisors, whose sum is σ = 545263400. Its totient is φ = 545263398.

The previous prime is 545263393. The next prime is 545263441. The reversal of 545263399 is 993362545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545263399 - 2¹¹ = 545261351 is a prime.

It is a super-3 number, since 3×545263399³ (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 (545263393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272631699 + 272631700.

It is an arithmetic number, because the mean of its divisors is an integer number (272631700).

Almost surely, 2^545263399 is an apocalyptic number.

545263399 is a deficient number, since it is larger than the sum of its proper divisors (1).

545263399 is an equidigital number, since it uses as much as digits as its factorization.

545263399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 46.

The square root of 545263399 is about 23350.8757651614. The cubic root of 545263399 is about 816.9624875471.

The spelling of 545263399 in words is "five hundred forty-five million, two hundred sixty-three thousand, three hundred ninety-nine".