4505213510521 has 2 divisors, whose sum is σ = 4505213510522. Its totient is φ = 4505213510520.

The previous prime is 4505213510489. The next prime is 4505213510527. The reversal of 4505213510521 is 1250153125054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2464786961296 + 2040426549225 = 1569964^2 + 1428435^2 .

It is a cyclic number.

It is not a de Polignac number, because 4505213510521 - 2⁵ = 4505213510489 is a prime.

It is not a weakly prime, because it can be changed into another prime (4505213510527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2252606755260 + 2252606755261.

It is an arithmetic number, because the mean of its divisors is an integer number (2252606755261).

Almost surely, 2^{4505213510521} is an apocalyptic number.

It is an amenable number.

4505213510521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4505213510521 is an equidigital number, since it uses as much as digits as its factorization.

4505213510521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30000, while the sum is 34.

Adding to 4505213510521 its reverse (1250153125054), we get a palindrome (5755366635575).

The spelling of 4505213510521 in words is "four trillion, five hundred five billion, two hundred thirteen million, five hundred ten thousand, five hundred twenty-one".