556641436 has 12 divisors (see below), whose sum is σ = 1049055112. Its totient is φ = 256911408.

The previous prime is 556641373. The next prime is 556641439. The reversal of 556641436 is 634146655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556641439) 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, 5352270 + ... + 5352373.

Almost surely, 2^556641436 is an apocalyptic number.

It is an amenable number.

556641436 is a deficient number, since it is larger than the sum of its proper divisors (492413676).

556641436 is a wasteful number, since it uses less digits than its factorization.

556641436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10704660 (or 10704658 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 556641436 is about 23593.2497973467. The cubic root of 556641436 is about 822.6059451546.

The spelling of 556641436 in words is "five hundred fifty-six million, six hundred forty-one thousand, four hundred thirty-six".