556566453 has 6 divisors (see below), whose sum is σ = 803929334. Its totient is φ = 371044296.

The previous prime is 556566419. The next prime is 556566557. The reversal of 556566453 is 354665655.

556566453 is a `hidden beast` number, since 556 + 56 + 6 + 45 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 551216484 + 5349969 = 23478^2 + 2313^2 .

It is not a de Polignac number, because 556566453 - 2⁶ = 556566389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 556566399 and 556566408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556566053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30920350 + ... + 30920367.

Almost surely, 2^556566453 is an apocalyptic number.

It is an amenable number.

556566453 is a deficient number, since it is larger than the sum of its proper divisors (247362881).

556566453 is a wasteful number, since it uses less digits than its factorization.

556566453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61840723 (or 61840720 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 45.

The square root of 556566453 is about 23591.6606664304. The cubic root of 556566453 is about 822.5690068148.

It can be divided in two parts, 556 and 566453, that added together give a square (567009 = 753²).

The spelling of 556566453 in words is "five hundred fifty-six million, five hundred sixty-six thousand, four hundred fifty-three".