557268220 has 24 divisors (see below), whose sum is σ = 1170741600. Its totient is φ = 222816192.

The previous prime is 557268209. The next prime is 557268221. The reversal of 557268220 is 22862755.

It is a self number, because there is not a number n which added to its sum of digits gives 557268220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557268221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67266 + ... + 75094.

It is an arithmetic number, because the mean of its divisors is an integer number (48780900).

Almost surely, 2^557268220 is an apocalyptic number.

It is an amenable number.

557268220 is an abundant number, since it is smaller than the sum of its proper divisors (613473380).

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

557268220 is a wasteful number, since it uses less digits than its factorization.

557268220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11397 (or 11395 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 557268220 is about 23606.5291815633. The cubic root of 557268220 is about 822.9145836006.

The spelling of 557268220 in words is "five hundred fifty-seven million, two hundred sixty-eight thousand, two hundred twenty".