355056421253 has 2 divisors, whose sum is σ = 355056421254. Its totient is φ = 355056421252.

The previous prime is 355056421243. The next prime is 355056421267. The reversal of 355056421253 is 352124650553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242175204769 + 112881216484 = 492113^2 + 335978^2 .

It is a cyclic number.

It is not a de Polignac number, because 355056421253 - 2¹⁴ = 355056404869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 355056421253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355056421243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177528210626 + 177528210627.

It is an arithmetic number, because the mean of its divisors is an integer number (177528210627).

Almost surely, 2^355056421253 is an apocalyptic number.

It is an amenable number.

355056421253 is a deficient number, since it is larger than the sum of its proper divisors (1).

355056421253 is an equidigital number, since it uses as much as digits as its factorization.

355056421253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 355056421253 in words is "three hundred fifty-five billion, fifty-six million, four hundred twenty-one thousand, two hundred fifty-three".