220523421325 has 12 divisors (see below), whose sum is σ = 273460357908. Its totient is φ = 176411436800.

The previous prime is 220523421323. The next prime is 220523421367. The reversal of 220523421325 is 523124325022.

220523421325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 2220482884 + 218302938441 = 47122^2 + 467229^2 .

It is not a de Polignac number, because 220523421325 - 2¹ = 220523421323 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 (220523421323) by changing a digit.

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, 481029 + ... + 820021.

It is an arithmetic number, because the mean of its divisors is an integer number (22788363159).

Almost surely, 2^220523421325 is an apocalyptic number.

220523421325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220523421325 is a deficient number, since it is larger than the sum of its proper divisors (52936936583).

220523421325 is a wasteful number, since it uses less digits than its factorization.

220523421325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365024 (or 365019 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 220523421325 its reverse (523124325022), we get a palindrome (743647746347).

The spelling of 220523421325 in words is "two hundred twenty billion, five hundred twenty-three million, four hundred twenty-one thousand, three hundred twenty-five".