12757550 has 48 divisors (see below), whose sum is σ = 26925360. Its totient is φ = 4458240.

The previous prime is 12757543. The next prime is 12757583. The reversal of 12757550 is 5575721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11834 + ... + 12866.

It is an arithmetic number, because the mean of its divisors is an integer number (560945).

Almost surely, 2^12757550 is an apocalyptic number.

12757550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12757550 is an abundant number, since it is smaller than the sum of its proper divisors (14167810).

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

12757550 is a wasteful number, since it uses less digits than its factorization.

12757550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077 (or 1072 counting only the distinct ones).

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

The square root of 12757550 is about 3571.7712692724. The cubic root of 12757550 is about 233.6625398442.

The spelling of 12757550 in words is "twelve million, seven hundred fifty-seven thousand, five hundred fifty".