557279849 has 4 divisors (see below), whose sum is σ = 636891264. Its totient is φ = 477668436.

The previous prime is 557279809. The next prime is 557279851. The reversal of 557279849 is 948972755.

557279849 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 557279849 - 2¹² = 557275753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 557279794 and 557279803.

It is not an unprimeable number, because it can be changed into a prime (557279809) 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, 39805697 + ... + 39805710.

It is an arithmetic number, because the mean of its divisors is an integer number (159222816).

Almost surely, 2^557279849 is an apocalyptic number.

It is an amenable number.

557279849 is a deficient number, since it is larger than the sum of its proper divisors (79611415).

557279849 is an equidigital number, since it uses as much as digits as its factorization.

557279849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79611414.

The product of its digits is 6350400, while the sum is 56.

The square root of 557279849 is about 23606.7754892531. The cubic root of 557279849 is about 822.9203077186.

The spelling of 557279849 in words is "five hundred fifty-seven million, two hundred seventy-nine thousand, eight hundred forty-nine".