12551003 has 2 divisors, whose sum is σ = 12551004. Its totient is φ = 12551002.

The previous prime is 12550991. The next prime is 12551009. The reversal of 12551003 is 30015521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12551003 - 2¹⁴ = 12534619 is a prime.

It is not a weakly prime, because it can be changed into another prime (12551009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6275501 + 6275502.

It is an arithmetic number, because the mean of its divisors is an integer number (6275502).

Almost surely, 2^12551003 is an apocalyptic number.

12551003 is a deficient number, since it is larger than the sum of its proper divisors (1).

12551003 is an equidigital number, since it uses as much as digits as its factorization.

12551003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 12551003 is about 3542.7394767327. The cubic root of 12551003 is about 232.3946599536.

Adding to 12551003 its reverse (30015521), we get a palindrome (42566524).

The spelling of 12551003 in words is "twelve million, five hundred fifty-one thousand, three".