555275380 has 96 divisors (see below), whose sum is σ = 1358622720. Its totient is φ = 188496000.

The previous prime is 555275351. The next prime is 555275381. The reversal of 555275380 is 83572555.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555275381) 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, 295845 + ... + 297715.

It is an arithmetic number, because the mean of its divisors is an integer number (14152320).

Almost surely, 2^555275380 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 555275380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (679311360).

555275380 is an abundant number, since it is smaller than the sum of its proper divisors (803347340).

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

555275380 is a wasteful number, since it uses less digits than its factorization.

555275380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981 (or 1979 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 40.

The square root of 555275380 is about 23564.2818689643. The cubic root of 555275380 is about 821.9324737381.

The spelling of 555275380 in words is "five hundred fifty-five million, two hundred seventy-five thousand, three hundred eighty".