557289629 has 4 divisors (see below), whose sum is σ = 600158076. Its totient is φ = 514421184.

The previous prime is 557289583. The next prime is 557289643. The reversal of 557289629 is 926982755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 926982755 = 5 ⋅185396551.

It can be written as a sum of positive squares in 2 ways, for example, as 74476900 + 482812729 = 8630^2 + 21973^2 .

It is a cyclic number.

It is not a de Polignac number, because 557289629 - 2²⁰ = 556241053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557289679) 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, 21434204 + ... + 21434229.

It is an arithmetic number, because the mean of its divisors is an integer number (150039519).

Almost surely, 2^557289629 is an apocalyptic number.

It is an amenable number.

557289629 is a deficient number, since it is larger than the sum of its proper divisors (42868447).

557289629 is a wasteful number, since it uses less digits than its factorization.

557289629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42868446.

The product of its digits is 2721600, while the sum is 53.

The square root of 557289629 is about 23606.9826322637. The cubic root of 557289629 is about 822.9251216456.

The spelling of 557289629 in words is "five hundred fifty-seven million, two hundred eighty-nine thousand, six hundred twenty-nine".