506140561 has 8 divisors (see below), whose sum is σ = 510896960. Its totient is φ = 501400368.

The previous prime is 506140543. The next prime is 506140631. The reversal of 506140561 is 165041605.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 506140561 - 2⁵ = 506140529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506140961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63955 + ... + 71431.

It is an arithmetic number, because the mean of its divisors is an integer number (63862120).

Almost surely, 2^506140561 is an apocalyptic number.

It is an amenable number.

506140561 is a deficient number, since it is larger than the sum of its proper divisors (4756399).

506140561 is a wasteful number, since it uses less digits than its factorization.

506140561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8103.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 506140561 is about 22497.5678907743. The cubic root of 506140561 is about 796.9364924809.

The spelling of 506140561 in words is "five hundred six million, one hundred forty thousand, five hundred sixty-one".