1825633 has 4 divisors (see below), whose sum is σ = 1832368. Its totient is φ = 1818900.

The previous prime is 1825631. The next prime is 1825661. The reversal of 1825633 is 3365281.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1825633 - 2¹ = 1825631 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1825631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2943 + ... + 3508.

It is an arithmetic number, because the mean of its divisors is an integer number (458092).

2^1825633 is an apocalyptic number.

It is an amenable number.

1825633 is a deficient number, since it is larger than the sum of its proper divisors (6735).

1825633 is an equidigital number, since it uses as much as digits as its factorization.

1825633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6734.

The product of its digits is 4320, while the sum is 28.

The square root of 1825633 is about 1351.1598721099. The cubic root of 1825633 is about 122.2187466719.

It can be divided in two parts, 18 and 25633, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 1825633 in words is "one million, eight hundred twenty-five thousand, six hundred thirty-three".