12550724 has 6 divisors (see below), whose sum is σ = 21963774. Its totient is φ = 6275360.

The previous prime is 12550723. The next prime is 12550729. The reversal of 12550724 is 42705521.

It can be written as a sum of positive squares in only one way, i.e., 9424900 + 3125824 = 3070^2 + 1768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12550693 and 12550702.

It is not an unprimeable number, because it can be changed into a prime (12550723) by changing a digit.

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 as a sum of consecutive naturals, namely, 1568837 + ... + 1568844.

It is an arithmetic number, because the mean of its divisors is an integer number (3660629).

Almost surely, 2^12550724 is an apocalyptic number.

It is an amenable number.

12550724 is a deficient number, since it is larger than the sum of its proper divisors (9413050).

12550724 is a wasteful number, since it uses less digits than its factorization.

12550724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3137685 (or 3137683 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 12550724 is about 3542.7001002061. The cubic root of 12550724 is about 232.3929379507.

The spelling of 12550724 in words is "twelve million, five hundred fifty thousand, seven hundred twenty-four".