123425553005 has 4 divisors (see below), whose sum is σ = 148110663612. Its totient is φ = 98740442400.

The previous prime is 123425553001. The next prime is 123425553047. The reversal of 123425553005 is 500355524321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500355524321 = 191 ⋅2619662431.

It can be written as a sum of positive squares in 2 ways, for example, as 57706128841 + 65719424164 = 240221^2 + 256358^2 .

It is not a de Polignac number, because 123425553005 - 2² = 123425553001 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 (123425553001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12342555296 + ... + 12342555305.

It is an arithmetic number, because the mean of its divisors is an integer number (37027665903).

Almost surely, 2^123425553005 is an apocalyptic number.

It is an amenable number.

123425553005 is a deficient number, since it is larger than the sum of its proper divisors (24685110607).

123425553005 is an equidigital number, since it uses as much as digits as its factorization.

123425553005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24685110606.

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 123425553005 in words is "one hundred twenty-three billion, four hundred twenty-five million, five hundred fifty-three thousand, five".