1825403 has 2 divisors, whose sum is σ = 1825404. Its totient is φ = 1825402.

The previous prime is 1825391. The next prime is 1825429. The reversal of 1825403 is 3045281.

It is a weak prime.

It is an emirp because it is prime and its reverse (3045281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1825403 - 2¹⁰ = 1824379 is a prime.

It is a super-2 number, since 2×1825403² = 6664192224818, which contains 22 as substring.

It is equal to p₁₃₆₈₄₁ and since 1825403 and 136841 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1825493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912701 + 912702.

It is an arithmetic number, because the mean of its divisors is an integer number (912702).

2^1825403 is an apocalyptic number.

1825403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1825403 is an equidigital number, since it uses as much as digits as its factorization.

1825403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1825403 is about 1351.0747573691. The cubic root of 1825403 is about 122.2136139331.

The spelling of 1825403 in words is "one million, eight hundred twenty-five thousand, four hundred three".