556601000 has 32 divisors (see below), whose sum is σ = 1302448680. Its totient is φ = 222640000.

The previous prime is 556600981. The next prime is 556601009. The reversal of 556601000 is 106655.

It can be written as a sum of positive squares in 4 ways, for example, as 245925124 + 310675876 = 15682^2 + 17626^2 .

It is not an unprimeable number, because it can be changed into a prime (556601009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277301 + ... + 279300.

Almost surely, 2^556601000 is an apocalyptic number.

556601000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

556601000 is an abundant number, since it is smaller than the sum of its proper divisors (745847680).

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

556601000 is a wasteful number, since it uses less digits than its factorization.

556601000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556622 (or 556608 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 556601000 is about 23592.3928417615. The cubic root of 556601000 is about 822.5860258688.

Adding to 556601000 its reverse (106655), we get a palindrome (556707655).

The spelling of 556601000 in words is "five hundred fifty-six million, six hundred one thousand".