557377061 has 4 divisors (see below), whose sum is σ = 558098892. Its totient is φ = 556655232.

The previous prime is 557377057. The next prime is 557377091. The reversal of 557377061 is 160773755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160773755 = 5 ⋅32154751.

It can be written as a sum of positive squares in 2 ways, for example, as 338780836 + 218596225 = 18406^2 + 14785^2 .

It is a cyclic number.

It is not a de Polignac number, because 557377061 - 2² = 557377057 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 (557377021) 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, 359756 + ... + 361301.

It is an arithmetic number, because the mean of its divisors is an integer number (139524723).

Almost surely, 2^557377061 is an apocalyptic number.

It is an amenable number.

557377061 is a deficient number, since it is larger than the sum of its proper divisors (721831).

557377061 is an equidigital number, since it uses as much as digits as its factorization.

557377061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721830.

The product of its (nonzero) digits is 154350, while the sum is 41.

The square root of 557377061 is about 23608.8343846112. The cubic root of 557377061 is about 822.9681550602.

The spelling of 557377061 in words is "five hundred fifty-seven million, three hundred seventy-seven thousand, sixty-one".