506326521 has 16 divisors (see below), whose sum is σ = 720451584. Its totient is φ = 315189504.

The previous prime is 506326493. The next prime is 506326547. The reversal of 506326521 is 125623605.

It is not a de Polignac number, because 506326521 - 2¹⁰ = 506325497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (506322521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32610 + ... + 45563.

It is an arithmetic number, because the mean of its divisors is an integer number (45028224).

Almost surely, 2^506326521 is an apocalyptic number.

506326521 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

506326521 is a deficient number, since it is larger than the sum of its proper divisors (214125063).

506326521 is a wasteful number, since it uses less digits than its factorization.

506326521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78320.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 506326521 is about 22501.7004024140. The cubic root of 506326521 is about 797.0340807633.

The spelling of 506326521 in words is "five hundred six million, three hundred twenty-six thousand, five hundred twenty-one".