200056557 has 4 divisors (see below), whose sum is σ = 266742080. Its totient is φ = 133371036.

The previous prime is 200056543. The next prime is 200056559. The reversal of 200056557 is 755650002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 200056557 - 2⁷ = 200056429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200056559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33342757 + ... + 33342762.

It is an arithmetic number, because the mean of its divisors is an integer number (66685520).

Almost surely, 2^200056557 is an apocalyptic number.

It is an amenable number.

200056557 is a deficient number, since it is larger than the sum of its proper divisors (66685523).

200056557 is an equidigital number, since it uses as much as digits as its factorization.

200056557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66685522.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 200056557 is about 14144.1350742985. The cubic root of 200056557 is about 584.8586670043.

It can be divided in two parts, 20005 and 6557, that added together give a palindrome (26562).

The spelling of 200056557 in words is "two hundred million, fifty-six thousand, five hundred fifty-seven".