12523256355 has 16 divisors (see below), whose sum is σ = 20039665824. Its totient is φ = 6678251520.

The previous prime is 12523256321. The next prime is 12523256371. The reversal of 12523256355 is 55365232521.

It is a happy number.

It is not a de Polignac number, because 12523256355 - 2¹⁶ = 12523190819 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87427 + ... + 180803.

It is an arithmetic number, because the mean of its divisors is an integer number (1252479114).

Almost surely, 2^12523256355 is an apocalyptic number.

12523256355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12523256355 is a deficient number, since it is larger than the sum of its proper divisors (7516409469).

12523256355 is an equidigital number, since it uses as much as digits as its factorization.

12523256355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102326.

The product of its digits is 270000, while the sum is 39.

Adding to 12523256355 its reverse (55365232521), we get a palindrome (67888488876).

The spelling of 12523256355 in words is "twelve billion, five hundred twenty-three million, two hundred fifty-six thousand, three hundred fifty-five".