540504823 has 2 divisors, whose sum is σ = 540504824. Its totient is φ = 540504822.

The previous prime is 540504793. The next prime is 540504827. The reversal of 540504823 is 328405045.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 540504823 - 2¹⁷ = 540373751 is a prime.

It is a super-2 number, since 2×540504823² = 584290927372522658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540504827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270252411 + 270252412.

It is an arithmetic number, because the mean of its divisors is an integer number (270252412).

Almost surely, 2^540504823 is an apocalyptic number.

540504823 is a deficient number, since it is larger than the sum of its proper divisors (1).

540504823 is an equidigital number, since it uses as much as digits as its factorization.

540504823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 540504823 is about 23248.7596013207. The cubic root of 540504823 is about 814.5789652848.

Adding to 540504823 its reverse (328405045), we get a palindrome (868909868).

The spelling of 540504823 in words is "five hundred forty million, five hundred four thousand, eight hundred twenty-three".