20035424125 has 16 divisors (see below), whose sum is σ = 25285169520. Its totient is φ = 15848236800.

The previous prime is 20035424117. The next prime is 20035424153. The reversal of 20035424125 is 52142453002.

It can be written as a sum of positive squares in 8 ways, for example, as 5343317604 + 14692106521 = 73098^2 + 121211^2 .

It is not a de Polignac number, because 20035424125 - 2³ = 20035424117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20035424093 and 20035424102.

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 15 ways as a sum of consecutive naturals, for example, 889344 + ... + 911593.

It is an arithmetic number, because the mean of its divisors is an integer number (1580323095).

Almost surely, 2^20035424125 is an apocalyptic number.

20035424125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20035424125 is a deficient number, since it is larger than the sum of its proper divisors (5249745395).

20035424125 is an equidigital number, since it uses as much as digits as its factorization.

20035424125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801041 (or 1801031 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 20035424125 its reverse (52142453002), we get a palindrome (72177877127).

The spelling of 20035424125 in words is "twenty billion, thirty-five million, four hundred twenty-four thousand, one hundred twenty-five".