1025803 has 2 divisors, whose sum is σ = 1025804. Its totient is φ = 1025802.

The previous prime is 1025789. The next prime is 1025807. The reversal of 1025803 is 3085201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1025803 - 2¹⁷ = 894731 is a prime.

It is not a weakly prime, because it can be changed into another prime (1025807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512901 + 512902.

It is an arithmetic number, because the mean of its divisors is an integer number (512902).

2^1025803 is an apocalyptic number.

1025803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025803 is an equidigital number, since it uses as much as digits as its factorization.

1025803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1025803 is about 1012.8193323589. The cubic root of 1025803 is about 100.8528065358.

The spelling of 1025803 in words is "one million, twenty-five thousand, eight hundred three".