355603 has 4 divisors (see below), whose sum is σ = 371088. Its totient is φ = 340120.

The previous prime is 355591. The next prime is 355609. The reversal of 355603 is 306553.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 306553 = 13 ⋅23581.

It is a cyclic number.

It is not a de Polignac number, because 355603 - 2⁵ = 355571 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7708 + ... + 7753.

It is an arithmetic number, because the mean of its divisors is an integer number (92772).

2³⁵⁵⁶⁰³ is an apocalyptic number.

355603 is a deficient number, since it is larger than the sum of its proper divisors (15485).

355603 is a wasteful number, since it uses less digits than its factorization.

355603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15484.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 355603 is about 596.3245760490. The cubic root of 355603 is about 70.8470555499.

The spelling of 355603 in words is "three hundred fifty-five thousand, six hundred three".