122553021725 has 6 divisors (see below), whose sum is σ = 151965746970. Its totient is φ = 98042417360.

The previous prime is 122553021691. The next prime is 122553021733. The reversal of 122553021725 is 527120355221.

It can be written as a sum of positive squares in 3 ways, for example, as 18769822009 + 103783199716 = 137003^2 + 322154^2 .

It is not a de Polignac number, because 122553021725 - 2³² = 118258054429 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 2451060410 + ... + 2451060459.

It is an arithmetic number, because the mean of its divisors is an integer number (25327624495).

Almost surely, 2^122553021725 is an apocalyptic number.

It is an amenable number.

122553021725 is a deficient number, since it is larger than the sum of its proper divisors (29412725245).

122553021725 is an equidigital number, since it uses as much as digits as its factorization.

122553021725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4902120879 (or 4902120874 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

Adding to 122553021725 its reverse (527120355221), we get a palindrome (649673376946).

The spelling of 122553021725 in words is "one hundred twenty-two billion, five hundred fifty-three million, twenty-one thousand, seven hundred twenty-five".