505240542523 has 2 divisors, whose sum is σ = 505240542524. Its totient is φ = 505240542522.

The previous prime is 505240542497. The next prime is 505240542559. The reversal of 505240542523 is 325245042505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505240542523 - 2⁵ = 505240542491 is a prime.

It is not a weakly prime, because it can be changed into another prime (505240842523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252620271261 + 252620271262.

It is an arithmetic number, because the mean of its divisors is an integer number (252620271262).

Almost surely, 2^505240542523 is an apocalyptic number.

505240542523 is a deficient number, since it is larger than the sum of its proper divisors (1).

505240542523 is an equidigital number, since it uses as much as digits as its factorization.

505240542523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240000, while the sum is 37.

The spelling of 505240542523 in words is "five hundred five billion, two hundred forty million, five hundred forty-two thousand, five hundred twenty-three".