53121454240523 has 2 divisors, whose sum is σ = 53121454240524. Its totient is φ = 53121454240522.

The previous prime is 53121454240423. The next prime is 53121454240627. The reversal of 53121454240523 is 32504245412135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53121454240523 - 2¹⁸ = 53121453978379 is a prime.

It is not a weakly prime, because it can be changed into another prime (53121454240123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26560727120261 + 26560727120262.

It is an arithmetic number, because the mean of its divisors is an integer number (26560727120262).

Almost surely, 2^{53121454240523} is an apocalyptic number.

53121454240523 is a deficient number, since it is larger than the sum of its proper divisors (1).

53121454240523 is an equidigital number, since it uses as much as digits as its factorization.

53121454240523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 53121454240523 its reverse (32504245412135), we get a palindrome (85625699652658).

The spelling of 53121454240523 in words is "fifty-three trillion, one hundred twenty-one billion, four hundred fifty-four million, two hundred forty thousand, five hundred twenty-three".