557507944 has 16 divisors (see below), whose sum is σ = 1194660000. Its totient is φ = 238931952.

The previous prime is 557507941. The next prime is 557507953. The reversal of 557507944 is 449705755.

It is a junction number, because it is equal to n+sod(n) for n = 557507894 and 557507903.

It is not an unprimeable number, because it can be changed into a prime (557507941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4977694 + ... + 4977805.

It is an arithmetic number, because the mean of its divisors is an integer number (74666250).

Almost surely, 2^557507944 is an apocalyptic number.

It is an amenable number.

557507944 is an abundant number, since it is smaller than the sum of its proper divisors (637152056).

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

557507944 is a wasteful number, since it uses less digits than its factorization.

557507944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9955512 (or 9955508 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 46.

The square root of 557507944 is about 23611.6061291899. The cubic root of 557507944 is about 823.0325663409.

The spelling of 557507944 in words is "five hundred fifty-seven million, five hundred seven thousand, nine hundred forty-four".