20507225703013 has 16 divisors (see below), whose sum is σ = 24249744535680. Its totient is φ = 16968173092416.

The previous prime is 20507225703011. The next prime is 20507225703017. The reversal of 20507225703013 is 31030752270502.

It is not a de Polignac number, because 20507225703013 - 2¹ = 20507225703011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20507225703011) 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 15 ways as a sum of consecutive naturals, for example, 8853706 + ... + 10927147.

It is an arithmetic number, because the mean of its divisors is an integer number (1515609033480).

Almost surely, 2^{20507225703013} is an apocalyptic number.

It is an amenable number.

20507225703013 is a deficient number, since it is larger than the sum of its proper divisors (3742518832667).

20507225703013 is a wasteful number, since it uses less digits than its factorization.

20507225703013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19785996.

The product of its (nonzero) digits is 88200, while the sum is 37.

Adding to 20507225703013 its reverse (31030752270502), we get a palindrome (51537977973515).

The spelling of 20507225703013 in words is "twenty trillion, five hundred seven billion, two hundred twenty-five million, seven hundred three thousand, thirteen".