12257555311 has 4 divisors (see below), whose sum is σ = 12257787672. Its totient is φ = 12257322952.

The previous prime is 12257555293. The next prime is 12257555351. The reversal of 12257555311 is 11355575221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12257555311 - 2⁷ = 12257555183 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 (12257555351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5265 + ... + 156661.

It is an arithmetic number, because the mean of its divisors is an integer number (3064446918).

Almost surely, 2^12257555311 is an apocalyptic number.

12257555311 is a deficient number, since it is larger than the sum of its proper divisors (232361).

12257555311 is an equidigital number, since it uses as much as digits as its factorization.

12257555311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232360.

The product of its digits is 52500, while the sum is 37.

The spelling of 12257555311 in words is "twelve billion, two hundred fifty-seven million, five hundred fifty-five thousand, three hundred eleven".