557645629 has 4 divisors (see below), whose sum is σ = 570614176. Its totient is φ = 544677084.

The previous prime is 557645617. The next prime is 557645651. The reversal of 557645629 is 926546755.

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 a cyclic number.

It is not a de Polignac number, because 557645629 - 2²³ = 549257021 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 (557645659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6484209 + ... + 6484294.

It is an arithmetic number, because the mean of its divisors is an integer number (142653544).

Almost surely, 2^557645629 is an apocalyptic number.

It is an amenable number.

557645629 is a deficient number, since it is larger than the sum of its proper divisors (12968547).

557645629 is a wasteful number, since it uses less digits than its factorization.

557645629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12968546.

The product of its digits is 2268000, while the sum is 49.

The square root of 557645629 is about 23614.5215704236. The cubic root of 557645629 is about 823.1003142016.

The spelling of 557645629 in words is "five hundred fifty-seven million, six hundred forty-five thousand, six hundred twenty-nine".