20543344025 has 48 divisors (see below), whose sum is σ = 26218798080. Its totient is φ = 15962918400.

The previous prime is 20543344009. The next prime is 20543344043. The reversal of 20543344025 is 52044334502.

It is not a de Polignac number, because 20543344025 - 2⁴ = 20543344009 is a prime.

It is a super-3 number, since 3×20543344025³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20543343982 and 20543344000.

It is an unprimeable number.

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, 50228021 + ... + 50228429.

It is an arithmetic number, because the mean of its divisors is an integer number (546224960).

Almost surely, 2^20543344025 is an apocalyptic number.

20543344025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20543344025 is a deficient number, since it is larger than the sum of its proper divisors (5675454055).

20543344025 is a wasteful number, since it uses less digits than its factorization.

20543344025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 20543344025 its reverse (52044334502), we get a palindrome (72587678527).

The spelling of 20543344025 in words is "twenty billion, five hundred forty-three million, three hundred forty-four thousand, twenty-five".