555398 has 8 divisors (see below), whose sum is σ = 839592. Its totient is φ = 275536.

The previous prime is 555391. The next prime is 555419. The reversal of 555398 is 893555.

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

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 555398.

It is not an unprimeable number, because it can be changed into a prime (555391) 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, 740 + ... + 1287.

It is an arithmetic number, because the mean of its divisors is an integer number (104949).

2⁵⁵⁵³⁹⁸ is an apocalyptic number.

555398 is a deficient number, since it is larger than the sum of its proper divisors (284194).

555398 is a wasteful number, since it uses less digits than its factorization.

555398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166.

The product of its digits is 27000, while the sum is 35.

The square root of 555398 is about 745.2502935256. The cubic root of 555398 is about 82.1992971013.

The spelling of 555398 in words is "five hundred fifty-five thousand, three hundred ninety-eight".