12550542 has 16 divisors (see below), whose sum is σ = 25138512. Its totient is φ = 4177280.

The previous prime is 12550529. The next prime is 12550543. The reversal of 12550542 is 24505521.

It is a happy number.

It is a super-2 number, since 2×12550542² = 315032208987528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12550543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4792 + ... + 6932.

It is an arithmetic number, because the mean of its divisors is an integer number (1571157).

Almost surely, 2^12550542 is an apocalyptic number.

12550542 is an abundant number, since it is smaller than the sum of its proper divisors (12587970).

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

12550542 is a wasteful number, since it uses less digits than its factorization.

12550542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 12550542 is about 3542.6744134905. The cubic root of 12550542 is about 232.3918146232.

The spelling of 12550542 in words is "twelve million, five hundred fifty thousand, five hundred forty-two".