12577055 has 4 divisors (see below), whose sum is σ = 15092472. Its totient is φ = 10061640.

The previous prime is 12577051. The next prime is 12577063. The reversal of 12577055 is 55077521.

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

It is not a de Polignac number, because 12577055 - 2² = 12577051 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 (12577051) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1257701 + ... + 1257710.

It is an arithmetic number, because the mean of its divisors is an integer number (3773118).

Almost surely, 2^12577055 is an apocalyptic number.

12577055 is a deficient number, since it is larger than the sum of its proper divisors (2515417).

12577055 is an equidigital number, since it uses as much as digits as its factorization.

12577055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515416.

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 12577055 is about 3546.4143863909. The cubic root of 12577055 is about 232.5553419729. Note that the first 3 decimals are identical.

The spelling of 12577055 in words is "twelve million, five hundred seventy-seven thousand, fifty-five".