1025503 has 2 divisors, whose sum is σ = 1025504. Its totient is φ = 1025502.

The previous prime is 1025483. The next prime is 1025509. The reversal of 1025503 is 3055201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1025503 - 2¹³ = 1017311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512751 + 512752.

It is an arithmetic number, because the mean of its divisors is an integer number (512752).

2^1025503 is an apocalyptic number.

1025503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025503 is an equidigital number, since it uses as much as digits as its factorization.

1025503 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 16.

The square root of 1025503 is about 1012.6712200907. The cubic root of 1025503 is about 100.8429739813.

The spelling of 1025503 in words is "one million, twenty-five thousand, five hundred three".