501855013 has 16 divisors (see below), whose sum is σ = 563397120. Its totient is φ = 443016000.

The previous prime is 501854989. The next prime is 501855017. The reversal of 501855013 is 310558105.

It is a cyclic number.

It is not a de Polignac number, because 501855013 - 2⁵ = 501854981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501855017) 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 15 ways as a sum of consecutive naturals, for example, 284428 + ... + 286186.

It is an arithmetic number, because the mean of its divisors is an integer number (35212320).

Almost surely, 2^501855013 is an apocalyptic number.

It is an amenable number.

501855013 is a deficient number, since it is larger than the sum of its proper divisors (61542107).

501855013 is a wasteful number, since it uses less digits than its factorization.

501855013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 501855013 is about 22402.1207255028. The cubic root of 501855013 is about 794.6808644839.

It can be divided in two parts, 5018 and 55013, that added together give a triangular number (60031 = T₃₄₆).

The spelling of 501855013 in words is "five hundred one million, eight hundred fifty-five thousand, thirteen".