501606513 has 20 divisors (see below), whose sum is σ = 765262080. Its totient is φ = 327286872.

The previous prime is 501606503. The next prime is 501606527. The reversal of 501606513 is 315606105.

It is a happy number.

501606513 is a `hidden beast` number, since 5 + 0 + 1 + 6 + 0 + 651 + 3 = 666.

It is not a de Polignac number, because 501606513 - 2⁶ = 501606449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (501606503) 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 19 ways as a sum of consecutive naturals, for example, 62073 + ... + 69686.

It is an arithmetic number, because the mean of its divisors is an integer number (38263104).

Almost surely, 2^501606513 is an apocalyptic number.

It is an amenable number.

501606513 is a deficient number, since it is larger than the sum of its proper divisors (263655567).

501606513 is a wasteful number, since it uses less digits than its factorization.

501606513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131818 (or 131809 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 501606513 is about 22396.5736888480. The cubic root of 501606513 is about 794.5496773260.

The spelling of 501606513 in words is "five hundred one million, six hundred six thousand, five hundred thirteen".