557266042 has 4 divisors (see below), whose sum is σ = 835899066. Its totient is φ = 278633020.

The previous prime is 557266037. The next prime is 557266063. The reversal of 557266042 is 240662755.

557266042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240662755 = 5 ⋅48132551.

It can be written as a sum of positive squares in only one way, i.e., 401240961 + 156025081 = 20031^2 + 12491^2 .

It is a junction number, because it is equal to n+sod(n) for n = 557265992 and 557266010.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139316509 + ... + 139316512.

Almost surely, 2^557266042 is an apocalyptic number.

557266042 is a deficient number, since it is larger than the sum of its proper divisors (278633024).

557266042 is a wasteful number, since it uses less digits than its factorization.

557266042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278633023.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 557266042 is about 23606.4830502131. The cubic root of 557266042 is about 822.9135115195.

The spelling of 557266042 in words is "five hundred fifty-seven million, two hundred sixty-six thousand, forty-two".