540664853 has 2 divisors, whose sum is σ = 540664854. Its totient is φ = 540664852.

The previous prime is 540664847. The next prime is 540664877. The reversal of 540664853 is 358466045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 484968484 + 55696369 = 22022^2 + 7463^2 .

It is a cyclic number.

It is not a de Polignac number, because 540664853 - 2¹⁴ = 540648469 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 540664853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540664823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270332426 + 270332427.

It is an arithmetic number, because the mean of its divisors is an integer number (270332427).

Almost surely, 2^540664853 is an apocalyptic number.

It is an amenable number.

540664853 is a deficient number, since it is larger than the sum of its proper divisors (1).

540664853 is an equidigital number, since it uses as much as digits as its factorization.

540664853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 41.

The square root of 540664853 is about 23252.2010356009. The cubic root of 540664853 is about 814.6593495251.

The spelling of 540664853 in words is "five hundred forty million, six hundred sixty-four thousand, eight hundred fifty-three".