557557431 has 8 divisors (see below), whose sum is σ = 752820480. Its totient is φ = 366999672.

The previous prime is 557557409. The next prime is 557557433. The reversal of 557557431 is 134755755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 557557431 - 2⁶ = 557557367 is a prime.

It is a super-2 number, since 2×557557431² = 621740577726639522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557557433) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1176045 + ... + 1176518.

It is an arithmetic number, because the mean of its divisors is an integer number (94102560).

Almost surely, 2^557557431 is an apocalyptic number.

557557431 is a deficient number, since it is larger than the sum of its proper divisors (195263049).

557557431 is a wasteful number, since it uses less digits than its factorization.

557557431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352645.

The product of its digits is 367500, while the sum is 42.

The square root of 557557431 is about 23612.6540439655. The cubic root of 557557431 is about 823.0569176876.

The spelling of 557557431 in words is "five hundred fifty-seven million, five hundred fifty-seven thousand, four hundred thirty-one".