506649851 has 8 divisors (see below), whose sum is σ = 512304144. Its totient is φ = 501016320.

The previous prime is 506649817. The next prime is 506649859. The reversal of 506649851 is 158946605.

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 506649851 - 2¹⁰ = 506648827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506649859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46736 + ... + 56546.

It is an arithmetic number, because the mean of its divisors is an integer number (64038018).

Almost surely, 2^506649851 is an apocalyptic number.

506649851 is a deficient number, since it is larger than the sum of its proper divisors (5654293).

506649851 is a wasteful number, since it uses less digits than its factorization.

506649851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10381.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 506649851 is about 22508.8838239483. The cubic root of 506649851 is about 797.2037013428.

The spelling of 506649851 in words is "five hundred six million, six hundred forty-nine thousand, eight hundred fifty-one".