556405273 has 4 divisors (see below), whose sum is σ = 556452900. Its totient is φ = 556357648.

The previous prime is 556405271. The next prime is 556405277. The reversal of 556405273 is 372504655.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 514518489 + 41886784 = 22683^2 + 6472^2 .

It is a cyclic number.

It is not a de Polignac number, because 556405273 - 2¹ = 556405271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556405271) 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, 7011 + ... + 34087.

It is an arithmetic number, because the mean of its divisors is an integer number (139113225).

Almost surely, 2^556405273 is an apocalyptic number.

It is an amenable number.

556405273 is a deficient number, since it is larger than the sum of its proper divisors (47627).

556405273 is a wasteful number, since it uses less digits than its factorization.

556405273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47626.

The product of its (nonzero) digits is 126000, while the sum is 37.

The square root of 556405273 is about 23588.2443814710. The cubic root of 556405273 is about 822.4895946307.

The spelling of 556405273 in words is "five hundred fifty-six million, four hundred five thousand, two hundred seventy-three".