501313536 has 130 divisors (see below), whose sum is σ = 1498559832. Its totient is φ = 166993920.

The previous prime is 501313529. The next prime is 501313541. The reversal of 501313536 is 635313105.

It is a super-4 number, since 4×501313536⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 331021 + ... + 332531.

Almost surely, 2^501313536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501313536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (749279916).

501313536 is an abundant number, since it is smaller than the sum of its proper divisors (997246296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

501313536 is an equidigital number, since it uses as much as digits as its factorization.

501313536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 501313536 is about 22390.0320678645. The cubic root of 501313536 is about 794.3949543769.

The spelling of 501313536 in words is "five hundred one million, three hundred thirteen thousand, five hundred thirty-six".