506636540 has 48 divisors (see below), whose sum is σ = 1102520160. Its totient is φ = 195436800.

The previous prime is 506636521. The next prime is 506636561. The reversal of 506636540 is 45636605.

It is a self number, because there is not a number n which added to its sum of digits gives 506636540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58490 + ... + 66590.

It is an arithmetic number, because the mean of its divisors is an integer number (22969170).

Almost surely, 2^506636540 is an apocalyptic number.

It is an amenable number.

506636540 is an abundant number, since it is smaller than the sum of its proper divisors (595883620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

506636540 is a wasteful number, since it uses less digits than its factorization.

506636540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8222 (or 8220 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 506636540 is about 22508.5881387527. The cubic root of 506636540 is about 797.1967197484.

The spelling of 506636540 in words is "five hundred six million, six hundred thirty-six thousand, five hundred forty".