20413311225 has 48 divisors (see below), whose sum is σ = 34118482944. Its totient is φ = 10768896000.

The previous prime is 20413311223. The next prime is 20413311251. The reversal of 20413311225 is 52211331402.

It is not a de Polignac number, because 20413311225 - 2¹ = 20413311223 is a prime.

It is a super-2 number, since 2×20413311225² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20413311195 and 20413311204.

It is not an unprimeable number, because it can be changed into a prime (20413311223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2588889 + ... + 2596761.

It is an arithmetic number, because the mean of its divisors is an integer number (710801728).

Almost surely, 2^20413311225 is an apocalyptic number.

20413311225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20413311225 is a deficient number, since it is larger than the sum of its proper divisors (13705171719).

20413311225 is a wasteful number, since it uses less digits than its factorization.

20413311225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8258 (or 8253 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 20413311225 its reverse (52211331402), we get a palindrome (72624642627).

The spelling of 20413311225 in words is "twenty billion, four hundred thirteen million, three hundred eleven thousand, two hundred twenty-five".