506551263 has 8 divisors (see below), whose sum is σ = 688145328. Its totient is φ = 331329024.

The previous prime is 506551217. The next prime is 506551271. The reversal of 506551263 is 362155605.

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

It is not a de Polignac number, because 506551263 - 2²⁰ = 505502687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506551163) 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, 1592770 + ... + 1593087.

It is an arithmetic number, because the mean of its divisors is an integer number (86018166).

Almost surely, 2^506551263 is an apocalyptic number.

506551263 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

506551263 is a deficient number, since it is larger than the sum of its proper divisors (181594065).

506551263 is a wasteful number, since it uses less digits than its factorization.

506551263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185913.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 506551263 is about 22506.6937376417. The cubic root of 506551263 is about 797.1519892207.

The spelling of 506551263 in words is "five hundred six million, five hundred fifty-one thousand, two hundred sixty-three".