52558450561 has 2 divisors, whose sum is σ = 52558450562. Its totient is φ = 52558450560.

The previous prime is 52558450547. The next prime is 52558450573. The reversal of 52558450561 is 16505485525.

52558450561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48426403600 + 4132046961 = 220060^2 + 64281^2 .

It is a cyclic number.

It is not a de Polignac number, because 52558450561 - 2¹³ = 52558442369 is a prime.

It is not a weakly prime, because it can be changed into another prime (52558459561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26279225280 + 26279225281.

It is an arithmetic number, because the mean of its divisors is an integer number (26279225281).

Almost surely, 2^52558450561 is an apocalyptic number.

It is an amenable number.

52558450561 is a deficient number, since it is larger than the sum of its proper divisors (1).

52558450561 is an equidigital number, since it uses as much as digits as its factorization.

52558450561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200000, while the sum is 46.

The spelling of 52558450561 in words is "fifty-two billion, five hundred fifty-eight million, four hundred fifty thousand, five hundred sixty-one".