555491272 has 16 divisors (see below), whose sum is σ = 1190338560. Its totient is φ = 238067664.

The previous prime is 555491267. The next prime is 555491273. The reversal of 555491272 is 272194555.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (555491273) 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 3 ways as a sum of consecutive naturals, for example, 4959688 + ... + 4959799.

It is an arithmetic number, because the mean of its divisors is an integer number (74396160).

Almost surely, 2^555491272 is an apocalyptic number.

It is an amenable number.

555491272 is an abundant number, since it is smaller than the sum of its proper divisors (634847288).

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

555491272 is a wasteful number, since it uses less digits than its factorization.

555491272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9919500 (or 9919496 counting only the distinct ones).

The product of its digits is 126000, while the sum is 40.

The square root of 555491272 is about 23568.8623399603. The cubic root of 555491272 is about 822.0389828443.

The spelling of 555491272 in words is "five hundred fifty-five million, four hundred ninety-one thousand, two hundred seventy-two".