506633653 has 4 divisors (see below), whose sum is σ = 506740000. Its totient is φ = 506527308.

The previous prime is 506633629. The next prime is 506633663. The reversal of 506633653 is 356336605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 356336605 = 5 ⋅71267321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506633653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506633623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45675 + ... + 55672.

It is an arithmetic number, because the mean of its divisors is an integer number (126685000).

Almost surely, 2^506633653 is an apocalyptic number.

It is an amenable number.

506633653 is a deficient number, since it is larger than the sum of its proper divisors (106347).

506633653 is a wasteful number, since it uses less digits than its factorization.

506633653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106346.

The product of its (nonzero) digits is 145800, while the sum is 37.

The square root of 506633653 is about 22508.5240075843. The cubic root of 506633653 is about 797.1952055061.

The spelling of 506633653 in words is "five hundred six million, six hundred thirty-three thousand, six hundred fifty-three".