4520534991523 has 2 divisors, whose sum is σ = 4520534991524. Its totient is φ = 4520534991522.

The previous prime is 4520534991473. The next prime is 4520534991563. The reversal of 4520534991523 is 3251994350254.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4520534991523 - 2²⁵ = 4520501437091 is a prime.

It is not a weakly prime, because it can be changed into another prime (4520534991563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260267495761 + 2260267495762.

It is an arithmetic number, because the mean of its divisors is an integer number (2260267495762).

Almost surely, 2^{4520534991523} is an apocalyptic number.

4520534991523 is a deficient number, since it is larger than the sum of its proper divisors (1).

4520534991523 is an equidigital number, since it uses as much as digits as its factorization.

4520534991523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832000, while the sum is 52.

The spelling of 4520534991523 in words is "four trillion, five hundred twenty billion, five hundred thirty-four million, nine hundred ninety-one thousand, five hundred twenty-three".