345553 has 8 divisors (see below), whose sum is σ = 392000. Its totient is φ = 301968.

The previous prime is 345551. The next prime is 345571. The reversal of 345553 is 355543.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345553 - 2¹ = 345551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453 + ... + 946.

It is an arithmetic number, because the mean of its divisors is an integer number (49000).

2³⁴⁵⁵⁵³ is an apocalyptic number.

It is an amenable number.

345553 is a deficient number, since it is larger than the sum of its proper divisors (46447).

345553 is a wasteful number, since it uses less digits than its factorization.

345553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431.

The product of its digits is 4500, while the sum is 25.

The square root of 345553 is about 587.8375625970. The cubic root of 345553 is about 70.1732443499.

Adding to 345553 its product of digits (4500), we get a palindrome (350053).

It can be divided in two parts, 345 and 553, that added together give a palindrome (898).

The spelling of 345553 in words is "three hundred forty-five thousand, five hundred fifty-three".