343055553 has 8 divisors (see below), whose sum is σ = 458766048. Its totient is φ = 228024384.

The previous prime is 343055551. The next prime is 343055593. The reversal of 343055553 is 355550343.

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

It is not a de Polignac number, because 343055553 - 2¹ = 343055551 is a prime.

It is a super-2 number, since 2×343055553² = 235374224888271618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (343055551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168651 + ... + 170672.

It is an arithmetic number, because the mean of its divisors is an integer number (57345756).

Almost surely, 2^343055553 is an apocalyptic number.

It is an amenable number.

343055553 is a deficient number, since it is larger than the sum of its proper divisors (115710495).

343055553 is a wasteful number, since it uses less digits than its factorization.

343055553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339663.

The product of its (nonzero) digits is 67500, while the sum is 33.

The square root of 343055553 is about 18521.7589067561. The cubic root of 343055553 is about 700.0377891164.

The spelling of 343055553 in words is "three hundred forty-three million, fifty-five thousand, five hundred fifty-three".