355520453255213 has 2 divisors, whose sum is σ = 355520453255214. Its totient is φ = 355520453255212.

The previous prime is 355520453255207. The next prime is 355520453255399. The reversal of 355520453255213 is 312552354025553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 327384621375529 + 28135831879684 = 18093773^2 + 5304322^2 .

It is a cyclic number.

It is not a de Polignac number, because 355520453255213 - 2⁴⁰ = 354420941627437 is a prime.

It is a super-2 number, since 2×355520453255213² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355520453255203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177760226627606 + 177760226627607.

It is an arithmetic number, because the mean of its divisors is an integer number (177760226627607).

Almost surely, 2^{355520453255213} is an apocalyptic number.

It is an amenable number.

355520453255213 is a deficient number, since it is larger than the sum of its proper divisors (1).

355520453255213 is an equidigital number, since it uses as much as digits as its factorization.

355520453255213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500000, while the sum is 50.

The spelling of 355520453255213 in words is "three hundred fifty-five trillion, five hundred twenty billion, four hundred fifty-three million, two hundred fifty-five thousand, two hundred thirteen".