501313642 has 16 divisors (see below), whose sum is σ = 771151752. Its totient is φ = 244276480.

The previous prime is 501313639. The next prime is 501313643. The reversal of 501313642 is 246313105.

It can be written as a sum of positive squares in 4 ways, for example, as 113656921 + 387656721 = 10661^2 + 19689^2 .

It is not an unprimeable number, because it can be changed into a prime (501313643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87168 + ... + 92740.

Almost surely, 2^501313642 is an apocalyptic number.

501313642 is a deficient number, since it is larger than the sum of its proper divisors (269838110).

501313642 is a wasteful number, since it uses less digits than its factorization.

501313642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6713.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 501313642 is about 22390.0344349892. The cubic root of 501313642 is about 794.3950103671.

Adding to 501313642 its reverse (246313105), we get a palindrome (747626747).

The spelling of 501313642 in words is "five hundred one million, three hundred thirteen thousand, six hundred forty-two".