355573 has 2 divisors, whose sum is σ = 355574. Its totient is φ = 355572.

The previous prime is 355571. The next prime is 355591. The reversal of 355573 is 375553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213444 + 142129 = 462^2 + 377^2 .

It is an emirp because it is prime and its reverse (375553) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 355573 - 2¹ = 355571 is a prime.

Together with 355571, it forms a pair of twin primes.

355573 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177786 + 177787.

It is an arithmetic number, because the mean of its divisors is an integer number (177787).

2³⁵⁵⁵⁷³ is an apocalyptic number.

It is an amenable number.

355573 is a deficient number, since it is larger than the sum of its proper divisors (1).

355573 is an equidigital number, since it uses as much as digits as its factorization.

355573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7875, while the sum is 28.

The square root of 355573 is about 596.2994214319. The cubic root of 355573 is about 70.8450631863.

The spelling of 355573 in words is "three hundred fifty-five thousand, five hundred seventy-three".