556494541 has 16 divisors (see below), whose sum is σ = 616609584. Its totient is φ = 499958784.

The previous prime is 556494539. The next prime is 556494559. The reversal of 556494541 is 145494655.

It can be written as a sum of positive squares in 8 ways, for example, as 29975625 + 526518916 = 5475^2 + 22946^2 .

It is a cyclic number.

It is not a de Polignac number, because 556494541 - 2¹ = 556494539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556494511) 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, 24991 + ... + 41683.

It is an arithmetic number, because the mean of its divisors is an integer number (38538099).

Almost surely, 2^556494541 is an apocalyptic number.

It is an amenable number.

556494541 is a deficient number, since it is larger than the sum of its proper divisors (60115043).

556494541 is a wasteful number, since it uses less digits than its factorization.

556494541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16800.

The product of its digits is 432000, while the sum is 43.

The square root of 556494541 is about 23590.1365193167. The cubic root of 556494541 is about 822.5335782031.

The spelling of 556494541 in words is "five hundred fifty-six million, four hundred ninety-four thousand, five hundred forty-one".