555823398 has 64 divisors (see below), whose sum is σ = 1301952960. Its totient is φ = 156598272.

The previous prime is 555823393. The next prime is 555823403. The reversal of 555823398 is 893328555.

It is an interprime number because it is at equal distance from previous prime (555823393) and next prime (555823403).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555823393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43398 + ... + 54726.

It is an arithmetic number, because the mean of its divisors is an integer number (20343015).

Almost surely, 2^555823398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555823398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (650976480).

555823398 is an abundant number, since it is smaller than the sum of its proper divisors (746129562).

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

555823398 is a wasteful number, since it uses less digits than its factorization.

555823398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11401.

The product of its digits is 1296000, while the sum is 48.

The square root of 555823398 is about 23575.9071511575. The cubic root of 555823398 is about 822.2027814723.

The spelling of 555823398 in words is "five hundred fifty-five million, eight hundred twenty-three thousand, three hundred ninety-eight".