355530 has 32 divisors (see below), whose sum is σ = 975744. Its totient is φ = 81216.

The previous prime is 355529. The next prime is 355541. The reversal of 355530 is 35553.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 355497 and 355506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637 + ... + 1056.

It is an arithmetic number, because the mean of its divisors is an integer number (30492).

2³⁵⁵⁵³⁰ is an apocalyptic number.

355530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

355530 is an abundant number, since it is smaller than the sum of its proper divisors (620214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

355530 is a wasteful number, since it uses less digits than its factorization.

355530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710.

The product of its (nonzero) digits is 1125, while the sum is 21.

The square root of 355530 is about 596.2633646301. The cubic root of 355530 is about 70.8422072696.

It can be divided in two parts, 35 and 5530, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 355530 in words is "three hundred fifty-five thousand, five hundred thirty".