557548801 has 4 divisors (see below), whose sum is σ = 557603332. Its totient is φ = 557494272.

The previous prime is 557548799. The next prime is 557548811. The reversal of 557548801 is 108845755.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 108845755 = 5 ⋅21769151.

It can be written as a sum of positive squares in 2 ways, for example, as 445210000 + 112338801 = 21100^2 + 10599^2 .

It is a 3-Lehmer number, since φ(557548801) divides (557548801-1)³.

It is a cyclic number.

It is not a de Polignac number, because 557548801 - 2¹ = 557548799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557548811) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6816 + ... + 34081.

It is an arithmetic number, because the mean of its divisors is an integer number (139400833).

Almost surely, 2^557548801 is an apocalyptic number.

557548801 is the 13633-rd octagonal number.

It is an amenable number.

557548801 is a deficient number, since it is larger than the sum of its proper divisors (54531).

557548801 is a wasteful number, since it uses less digits than its factorization.

557548801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54530.

The product of its (nonzero) digits is 224000, while the sum is 43.

The square root of 557548801 is about 23612.4713022589. The cubic root of 557548801 is about 823.0526711786.

The spelling of 557548801 in words is "five hundred fifty-seven million, five hundred forty-eight thousand, eight hundred one".