557130031 has 4 divisors (see below), whose sum is σ = 561383064. Its totient is φ = 552877000.

The previous prime is 557129981. The next prime is 557130083. The reversal of 557130031 is 130031755.

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

It is a cyclic number.

It is not a de Polignac number, because 557130031 - 2⁹ = 557129519 is a prime.

It is a super-2 number, since 2×557130031² = 620787742884121922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 557129978 and 557130005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557130631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2126320 + ... + 2126581.

It is an arithmetic number, because the mean of its divisors is an integer number (140345766).

Almost surely, 2^557130031 is an apocalyptic number.

557130031 is a deficient number, since it is larger than the sum of its proper divisors (4253033).

557130031 is a wasteful number, since it uses less digits than its factorization.

557130031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4253032.

The product of its (nonzero) digits is 1575, while the sum is 25.

The square root of 557130031 is about 23603.6020768018. The cubic root of 557130031 is about 822.8465570260.

Adding to 557130031 its reverse (130031755), we get a palindrome (687161786).

The spelling of 557130031 in words is "five hundred fifty-seven million, one hundred thirty thousand, thirty-one".