4520355523961 has 2 divisors, whose sum is σ = 4520355523962. Its totient is φ = 4520355523960.

The previous prime is 4520355523909. The next prime is 4520355523969. The reversal of 4520355523961 is 1693255530254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3238761718336 + 1281593805625 = 1799656^2 + 1132075^2 .

It is a cyclic number.

It is not a de Polignac number, because 4520355523961 - 2⁶ = 4520355523897 is a prime.

It is a super-2 number, since 2×4520355523961² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4520355523969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260177761980 + 2260177761981.

It is an arithmetic number, because the mean of its divisors is an integer number (2260177761981).

Almost surely, 2^{4520355523961} is an apocalyptic number.

It is an amenable number.

4520355523961 is a deficient number, since it is larger than the sum of its proper divisors (1).

4520355523961 is an equidigital number, since it uses as much as digits as its factorization.

4520355523961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860000, while the sum is 50.

The spelling of 4520355523961 in words is "four trillion, five hundred twenty billion, three hundred fifty-five million, five hundred twenty-three thousand, nine hundred sixty-one".