25670503 has 2 divisors, whose sum is σ = 25670504. Its totient is φ = 25670502.

The previous prime is 25670483. The next prime is 25670509. The reversal of 25670503 is 30507652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25670503 - 2¹⁷ = 25539431 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25670509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12835251 + 12835252.

It is an arithmetic number, because the mean of its divisors is an integer number (12835252).

Almost surely, 2^25670503 is an apocalyptic number.

25670503 is a deficient number, since it is larger than the sum of its proper divisors (1).

25670503 is an equidigital number, since it uses as much as digits as its factorization.

25670503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 25670503 is about 5066.6066553464. The cubic root of 25670503 is about 294.9928294724.

The spelling of 25670503 in words is "twenty-five million, six hundred seventy thousand, five hundred three".