12512550 has 24 divisors (see below), whose sum is σ = 31031496. Its totient is φ = 3336640.

The previous prime is 12512531. The next prime is 12512557. The reversal of 12512550 is 5521521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41559 + ... + 41858.

It is an arithmetic number, because the mean of its divisors is an integer number (1292979).

Almost surely, 2^12512550 is an apocalyptic number.

12512550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12512550 is an abundant number, since it is smaller than the sum of its proper divisors (18518946).

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

12512550 is a wasteful number, since it uses less digits than its factorization.

12512550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83432 (or 83427 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 12512550 is about 3537.3082986927. The cubic root of 12512550 is about 232.1570849550.

The spelling of 12512550 in words is "twelve million, five hundred twelve thousand, five hundred fifty".