556661052 has 48 divisors (see below), whose sum is σ = 1455998880. Its totient is φ = 183907584.

The previous prime is 556661033. The next prime is 556661057. The reversal of 556661052 is 250166655.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 556660998 and 556661016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556661057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10603 + ... + 35010.

It is an arithmetic number, because the mean of its divisors is an integer number (30333310).

Almost surely, 2^556661052 is an apocalyptic number.

It is an amenable number.

556661052 is an abundant number, since it is smaller than the sum of its proper divisors (899337828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556661052 is a wasteful number, since it uses less digits than its factorization.

556661052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45739 (or 45731 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 556661052 is about 23593.6655058090. The cubic root of 556661052 is about 822.6156078971.

The spelling of 556661052 in words is "five hundred fifty-six million, six hundred sixty-one thousand, fifty-two".