506021636 has 12 divisors (see below), whose sum is σ = 886734912. Its totient is φ = 252668808.

The previous prime is 506021627. The next prime is 506021641. The reversal of 506021636 is 636120605.

It is a super-2 number, since 2×506021636² = 512115792200232992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 506021599 and 506021608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82160 + ... + 88103.

It is an arithmetic number, because the mean of its divisors is an integer number (73894576).

Almost surely, 2^506021636 is an apocalyptic number.

It is an amenable number.

506021636 is a deficient number, since it is larger than the sum of its proper divisors (380713276).

506021636 is a wasteful number, since it uses less digits than its factorization.

506021636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171010 (or 171008 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 506021636 is about 22494.9246720232. The cubic root of 506021636 is about 796.8740703636.

The spelling of 506021636 in words is "five hundred six million, twenty-one thousand, six hundred thirty-six".