555132240 has 240 divisors, whose sum is σ = 2027870208. Its totient is φ = 135281664.

The previous prime is 555132217. The next prime is 555132271. The reversal of 555132240 is 42231555.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1188487 + ... + 1188953.

Almost surely, 2^555132240 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 555132240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1013935104).

555132240 is an abundant number, since it is smaller than the sum of its proper divisors (1472737968).

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

555132240 is a wasteful number, since it uses less digits than its factorization.

555132240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 555132240 is about 23561.2444493070. The cubic root of 555132240 is about 821.8618412019.

Adding to 555132240 its reverse (42231555), we get a palindrome (597363795).

The spelling of 555132240 in words is "five hundred fifty-five million, one hundred thirty-two thousand, two hundred forty".