557531604442 has 4 divisors (see below), whose sum is σ = 836297406666. Its totient is φ = 278765802220.

The previous prime is 557531604437. The next prime is 557531604451. The reversal of 557531604442 is 244406135755.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 531322908561 + 26208695881 = 728919^2 + 161891^2 .

It is a junction number, because it is equal to n+sod(n) for n = 557531604392 and 557531604401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139382901109 + ... + 139382901112.

Almost surely, 2^557531604442 is an apocalyptic number.

557531604442 is a deficient number, since it is larger than the sum of its proper divisors (278765802224).

557531604442 is a wasteful number, since it uses less digits than its factorization.

557531604442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278765802223.

The product of its (nonzero) digits is 2016000, while the sum is 46.

The spelling of 557531604442 in words is "five hundred fifty-seven billion, five hundred thirty-one million, six hundred four thousand, four hundred forty-two".