555591920 has 160 divisors (see below), whose sum is σ = 1513236480. Its totient is φ = 187868160.

The previous prime is 555591913. The next prime is 555591961. The reversal of 555591920 is 29195555.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 612107 + ... + 613013.

It is an arithmetic number, because the mean of its divisors is an integer number (9457728).

Almost surely, 2^555591920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555591920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (756618240).

555591920 is an abundant number, since it is smaller than the sum of its proper divisors (957644560).

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

555591920 is a wasteful number, since it uses less digits than its factorization.

555591920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983 (or 977 counting only the distinct ones).

The product of its (nonzero) digits is 101250, while the sum is 41.

The square root of 555591920 is about 23570.9974332865. The cubic root of 555591920 is about 822.0886275385.

The spelling of 555591920 in words is "five hundred fifty-five million, five hundred ninety-one thousand, nine hundred twenty".