540551393 has 2 divisors, whose sum is σ = 540551394. Its totient is φ = 540551392.

The previous prime is 540551353. The next prime is 540551413. The reversal of 540551393 is 393155045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 363741184 + 176810209 = 19072^2 + 13297^2 .

It is a cyclic number.

It is not a de Polignac number, because 540551393 - 2¹⁰ = 540550369 is a prime.

It is not a weakly prime, because it can be changed into another prime (540551353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270275696 + 270275697.

It is an arithmetic number, because the mean of its divisors is an integer number (270275697).

Almost surely, 2^540551393 is an apocalyptic number.

It is an amenable number.

540551393 is a deficient number, since it is larger than the sum of its proper divisors (1).

540551393 is an equidigital number, since it uses as much as digits as its factorization.

540551393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 540551393 is about 23249.7611385580. The cubic root of 540551393 is about 814.6023593733.

The spelling of 540551393 in words is "five hundred forty million, five hundred fifty-one thousand, three hundred ninety-three".