501210025013 has 4 divisors (see below), whose sum is σ = 517378090368. Its totient is φ = 485041959660.

The previous prime is 501210024989. The next prime is 501210025031. The reversal of 501210025013 is 310520012105.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 501210025013 - 2¹⁰ = 501210023989 is a prime.

It is a super-2 number, since 2×501210025013² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501210028013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8084032631 + ... + 8084032692.

It is an arithmetic number, because the mean of its divisors is an integer number (129344522592).

Almost surely, 2^501210025013 is an apocalyptic number.

It is an amenable number.

501210025013 is a deficient number, since it is larger than the sum of its proper divisors (16168065355).

501210025013 is a wasteful number, since it uses less digits than its factorization.

501210025013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16168065354.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 501210025013 its reverse (310520012105), we get a palindrome (811730037118).

The spelling of 501210025013 in words is "five hundred one billion, two hundred ten million, twenty-five thousand, thirteen".