556577139 has 4 divisors (see below), whose sum is σ = 742102856. Its totient is φ = 371051424.

The previous prime is 556577113. The next prime is 556577141. The reversal of 556577139 is 931775655.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 556577139 - 2¹⁶ = 556511603 is a prime.

It is a super-3 number, since 3×556577139³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556577239) 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, 92762854 + ... + 92762859.

It is an arithmetic number, because the mean of its divisors is an integer number (185525714).

Almost surely, 2^556577139 is an apocalyptic number.

556577139 is a deficient number, since it is larger than the sum of its proper divisors (185525717).

556577139 is a wasteful number, since it uses less digits than its factorization.

556577139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185525716.

The product of its digits is 992250, while the sum is 48.

The square root of 556577139 is about 23591.8871436772. The cubic root of 556577139 is about 822.5742711854.

The spelling of 556577139 in words is "five hundred fifty-six million, five hundred seventy-seven thousand, one hundred thirty-nine".