12571056 has 30 divisors (see below), whose sum is σ = 35181900. Its totient is φ = 4190304.

The previous prime is 12571037. The next prime is 12571057. The reversal of 12571056 is 65017521.

It is not an unprimeable number, because it can be changed into a prime (12571057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43506 + ... + 43793.

It is an arithmetic number, because the mean of its divisors is an integer number (1172730).

Almost surely, 2^12571056 is an apocalyptic number.

12571056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12571056 is an abundant number, since it is smaller than the sum of its proper divisors (22610844).

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

12571056 is a wasteful number, since it uses less digits than its factorization.

12571056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87313 (or 87304 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 12571056 is about 3545.5685016651. The cubic root of 12571056 is about 232.5183613664.

Adding to 12571056 its reverse (65017521), we get a palindrome (77588577).

The spelling of 12571056 in words is "twelve million, five hundred seventy-one thousand, fifty-six".