555064920 has 256 divisors, whose sum is σ = 1949184000. Its totient is φ = 140313600.

The previous prime is 555064897. The next prime is 555064921. The reversal of 555064920 is 29460555.

555064920 is a `hidden beast` number, since 5 + 5 + 5 + 0 + 649 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555064921) 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 63 ways as a sum of consecutive naturals, for example, 1975180 + ... + 1975460.

It is an arithmetic number, because the mean of its divisors is an integer number (7614000).

Almost surely, 2^555064920 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 555064920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (974592000).

555064920 is an abundant number, since it is smaller than the sum of its proper divisors (1394119080).

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

555064920 is a wasteful number, since it uses less digits than its factorization.

555064920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 555064920 is about 23559.8157887535. The cubic root of 555064920 is about 821.8286179013.

The spelling of 555064920 in words is "five hundred fifty-five million, sixty-four thousand, nine hundred twenty".