52636540457 has 2 divisors, whose sum is σ = 52636540458. Its totient is φ = 52636540456.

The previous prime is 52636540423. The next prime is 52636540487. The reversal of 52636540457 is 75404563625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52457489296 + 179051161 = 229036^2 + 13381^2 .

It is a cyclic number.

It is not a de Polignac number, because 52636540457 - 2¹⁶ = 52636474921 is a prime.

It is not a weakly prime, because it can be changed into another prime (52636540487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26318270228 + 26318270229.

It is an arithmetic number, because the mean of its divisors is an integer number (26318270229).

Almost surely, 2^52636540457 is an apocalyptic number.

It is an amenable number.

52636540457 is a deficient number, since it is larger than the sum of its proper divisors (1).

52636540457 is an equidigital number, since it uses as much as digits as its factorization.

52636540457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024000, while the sum is 47.

The spelling of 52636540457 in words is "fifty-two billion, six hundred thirty-six million, five hundred forty thousand, four hundred fifty-seven".