557225020 has 48 divisors (see below), whose sum is σ = 1281764736. Its totient is φ = 201800000.

The previous prime is 557224981. The next prime is 557225021. The reversal of 557225020 is 20522755.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 557225020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557225021) 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 15 ways as a sum of consecutive naturals, for example, 50175 + ... + 60265.

It is an arithmetic number, because the mean of its divisors is an integer number (26703432).

Almost surely, 2^557225020 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 557225020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640882368).

557225020 is an abundant number, since it is smaller than the sum of its proper divisors (724539716).

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

557225020 is a wasteful number, since it uses less digits than its factorization.

557225020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10362 (or 10360 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 557225020 is about 23605.6141627368. The cubic root of 557225020 is about 822.8933186589.

Adding to 557225020 its reverse (20522755), we get a palindrome (577747775).

The spelling of 557225020 in words is "five hundred fifty-seven million, two hundred twenty-five thousand, twenty".