12550001 has 2 divisors, whose sum is σ = 12550002. Its totient is φ = 12550000.

The previous prime is 12549913. The next prime is 12550033. The reversal of 12550001 is 10005521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8708401 + 3841600 = 2951^2 + 1960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12550001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12550061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6275000 + 6275001.

It is an arithmetic number, because the mean of its divisors is an integer number (6275001).

Almost surely, 2^12550001 is an apocalyptic number.

It is an amenable number.

12550001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12550001 is an equidigital number, since it uses as much as digits as its factorization.

12550001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 12550001 is about 3542.5980579230. The cubic root of 12550001 is about 232.3884754373.

Adding to 12550001 its reverse (10005521), we get a palindrome (22555522).

The spelling of 12550001 in words is "twelve million, five hundred fifty thousand, one".