20344510251325 has 12 divisors (see below), whose sum is σ = 27167745997588. Its totient is φ = 15023638339200.

The previous prime is 20344510251313. The next prime is 20344510251371. The reversal of 20344510251325 is 52315201544302.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 913243987044 + 19431266264281 = 955638^2 + 4408091^2 .

It is not a de Polignac number, because 20344510251325 - 2¹¹ = 20344510249277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31299246216 + ... + 31299246865.

Almost surely, 2^{20344510251325} is an apocalyptic number.

20344510251325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20344510251325 is a deficient number, since it is larger than the sum of its proper divisors (6823235746263).

20344510251325 is a wasteful number, since it uses less digits than its factorization.

20344510251325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62598493104 (or 62598493099 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 20344510251325 its reverse (52315201544302), we get a palindrome (72659711795627).

The spelling of 20344510251325 in words is "twenty trillion, three hundred forty-four billion, five hundred ten million, two hundred fifty-one thousand, three hundred twenty-five".