2533821 has 8 divisors (see below), whose sum is σ = 3556320. Its totient is φ = 1600272.

The previous prime is 2533813. The next prime is 2533829. The reversal of 2533821 is 1283352.

It is an interprime number because it is at equal distance from previous prime (2533813) and next prime (2533829).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2533821 - 2³ = 2533813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2533791 and 2533800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2533829) 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 7 ways as a sum of consecutive naturals, for example, 22170 + ... + 22283.

It is an arithmetic number, because the mean of its divisors is an integer number (444540).

2^2533821 is an apocalyptic number.

It is an amenable number.

2533821 is a deficient number, since it is larger than the sum of its proper divisors (1022499).

2533821 is a wasteful number, since it uses less digits than its factorization.

2533821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44475.

The product of its digits is 1440, while the sum is 24.

The square root of 2533821 is about 1591.7980399536. The cubic root of 2533821 is about 136.3301702521.

The spelling of 2533821 in words is "two million, five hundred thirty-three thousand, eight hundred twenty-one".