123525253266 has 32 divisors (see below), whose sum is σ = 255141861120. Its totient is φ = 39846212736.

The previous prime is 123525253253. The next prime is 123525253289. The reversal of 123525253266 is 662352525321.

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 15 ways as a sum of consecutive naturals, for example, 2435761 + ... + 2485956.

It is an arithmetic number, because the mean of its divisors is an integer number (7973183160).

Almost surely, 2^123525253266 is an apocalyptic number.

123525253266 is an abundant number, since it is smaller than the sum of its proper divisors (131616607854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123525253266 is a wasteful number, since it uses less digits than its factorization.

123525253266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921858.

The product of its digits is 648000, while the sum is 42.

Adding to 123525253266 its reverse (662352525321), we get a palindrome (785877778587).

The spelling of 123525253266 in words is "one hundred twenty-three billion, five hundred twenty-five million, two hundred fifty-three thousand, two hundred sixty-six".