540110264521 has 2 divisors, whose sum is σ = 540110264522. Its totient is φ = 540110264520.

The previous prime is 540110264509. The next prime is 540110264581. The reversal of 540110264521 is 125462011045.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 350506625296 + 189603639225 = 592036^2 + 435435^2 .

It is a cyclic number.

It is not a de Polignac number, because 540110264521 - 2⁹ = 540110264009 is a prime.

It is not a weakly prime, because it can be changed into another prime (540110264581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270055132260 + 270055132261.

It is an arithmetic number, because the mean of its divisors is an integer number (270055132261).

Almost surely, 2^540110264521 is an apocalyptic number.

It is an amenable number.

540110264521 is a deficient number, since it is larger than the sum of its proper divisors (1).

540110264521 is an equidigital number, since it uses as much as digits as its factorization.

540110264521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 540110264521 its reverse (125462011045), we get a palindrome (665572275566).

The spelling of 540110264521 in words is "five hundred forty billion, one hundred ten million, two hundred sixty-four thousand, five hundred twenty-one".