52540524493 has 2 divisors, whose sum is σ = 52540524494. Its totient is φ = 52540524492.

The previous prime is 52540524451. The next prime is 52540524523. The reversal of 52540524493 is 39442504525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48078017289 + 4462507204 = 219267^2 + 66802^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52540524493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52540524893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26270262246 + 26270262247.

It is an arithmetic number, because the mean of its divisors is an integer number (26270262247).

Almost surely, 2^52540524493 is an apocalyptic number.

It is an amenable number.

52540524493 is a deficient number, since it is larger than the sum of its proper divisors (1).

52540524493 is an equidigital number, since it uses as much as digits as its factorization.

52540524493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 52540524493 in words is "fifty-two billion, five hundred forty million, five hundred twenty-four thousand, four hundred ninety-three".