557245 has 8 divisors (see below), whose sum is σ = 720216. Its totient is φ = 411456.

The previous prime is 557201. The next prime is 557261. The reversal of 557245 is 542755.

It can be written as a sum of positive squares in 4 ways, for example, as 729 + 556516 = 27^2 + 746^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 557245 - 2¹⁹ = 32957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4222 + ... + 4351.

It is an arithmetic number, because the mean of its divisors is an integer number (90027).

2⁵⁵⁷²⁴⁵ is an apocalyptic number.

It is an amenable number.

557245 is a deficient number, since it is larger than the sum of its proper divisors (162971).

557245 is a wasteful number, since it uses less digits than its factorization.

557245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8591.

The product of its digits is 7000, while the sum is 28.

The square root of 557245 is about 746.4884459923. The cubic root of 557245 is about 82.2903153831.

It can be divided in two parts, 5 and 57245, that multiplied together give a square (286225 = 535²).

The spelling of 557245 in words is "five hundred fifty-seven thousand, two hundred forty-five".