557168405 has 4 divisors (see below), whose sum is σ = 668602092. Its totient is φ = 445734720.

The previous prime is 557168401. The next prime is 557168461. The reversal of 557168405 is 504861755.

557168405 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: 504861755 = 5 ⋅100972351.

It can be written as a sum of positive squares in 2 ways, for example, as 217356049 + 339812356 = 14743^2 + 18434^2 .

It is not a de Polignac number, because 557168405 - 2² = 557168401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557168401) 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, 55716836 + ... + 55716845.

It is an arithmetic number, because the mean of its divisors is an integer number (167150523).

Almost surely, 2^557168405 is an apocalyptic number.

It is an amenable number.

557168405 is a deficient number, since it is larger than the sum of its proper divisors (111433687).

557168405 is a wasteful number, since it uses less digits than its factorization.

557168405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111433686.

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 557168405 is about 23604.4149472085. The cubic root of 557168405 is about 822.8654485996.

The spelling of 557168405 in words is "five hundred fifty-seven million, one hundred sixty-eight thousand, four hundred five".