52752530252581 has 2 divisors, whose sum is σ = 52752530252582. Its totient is φ = 52752530252580.

The previous prime is 52752530252509. The next prime is 52752530252621. The reversal of 52752530252581 is 18525203525725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45116288861956 + 7636241390625 = 6716866^2 + 2763375^2 .

It is a cyclic number.

It is not a de Polignac number, because 52752530252581 - 2²⁹ = 52751993381669 is a prime.

It is a super-2 number, since 2×52752530252581² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52752530232581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26376265126290 + 26376265126291.

It is an arithmetic number, because the mean of its divisors is an integer number (26376265126291).

Almost surely, 2^{52752530252581} is an apocalyptic number.

It is an amenable number.

52752530252581 is a deficient number, since it is larger than the sum of its proper divisors (1).

52752530252581 is an equidigital number, since it uses as much as digits as its factorization.

52752530252581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400000, while the sum is 52.

The spelling of 52752530252581 in words is "fifty-two trillion, seven hundred fifty-two billion, five hundred thirty million, two hundred fifty-two thousand, five hundred eighty-one".