506403556 has 12 divisors (see below), whose sum is σ = 892972080. Its totient is φ = 251268680.

The previous prime is 506403553. The next prime is 506403577. The reversal of 506403556 is 655304605.

It is not an unprimeable number, because it can be changed into a prime (506403553) 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, 482686 + ... + 483733.

It is an arithmetic number, because the mean of its divisors is an integer number (74414340).

Almost surely, 2^506403556 is an apocalyptic number.

It is an amenable number.

506403556 is a deficient number, since it is larger than the sum of its proper divisors (386568524).

506403556 is a wasteful number, since it uses less digits than its factorization.

506403556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966554 (or 966552 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 506403556 is about 22503.4120968354. The cubic root of 506403556 is about 797.0745002715.

The spelling of 506403556 in words is "five hundred six million, four hundred three thousand, five hundred fifty-six".