501313560261 has 8 divisors (see below), whose sum is σ = 682639741824. Its totient is φ = 327098209440.

The previous prime is 501313560229. The next prime is 501313560277. The reversal of 501313560261 is 162065313105.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 501313560261 - 2⁵ = 501313560229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501313560221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1777707520 + ... + 1777707801.

It is an arithmetic number, because the mean of its divisors is an integer number (85329967728).

Almost surely, 2^501313560261 is an apocalyptic number.

It is an amenable number.

501313560261 is a deficient number, since it is larger than the sum of its proper divisors (181326181563).

501313560261 is a wasteful number, since it uses less digits than its factorization.

501313560261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555415371.

The product of its (nonzero) digits is 16200, while the sum is 33.

Adding to 501313560261 its reverse (162065313105), we get a palindrome (663378873366).

The spelling of 501313560261 in words is "five hundred one billion, three hundred thirteen million, five hundred sixty thousand, two hundred sixty-one".