557509550 has 24 divisors (see below), whose sum is σ = 1116735816. Its totient is φ = 205849440.

The previous prime is 557509529. The next prime is 557509567. The reversal of 557509550 is 55905755.

It is a junction number, because it is equal to n+sod(n) for n = 557509498 and 557509507.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 428204 + ... + 429503.

It is an arithmetic number, because the mean of its divisors is an integer number (46530659).

Almost surely, 2^557509550 is an apocalyptic number.

557509550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

557509550 is an abundant number, since it is smaller than the sum of its proper divisors (559226266).

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

557509550 is a wasteful number, since it uses less digits than its factorization.

557509550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857732 (or 857727 counting only the distinct ones).

The product of its (nonzero) digits is 196875, while the sum is 41.

The square root of 557509550 is about 23611.6401378642. The cubic root of 557509550 is about 823.0333566370.

The spelling of 557509550 in words is "five hundred fifty-seven million, five hundred nine thousand, five hundred fifty".