33525121 has 4 divisors (see below), whose sum is σ = 38314432. Its totient is φ = 28735812.

The previous prime is 33525091. The next prime is 33525137. The reversal of 33525121 is 12152533.

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 de Polignac number, because none of the positive numbers 2^k-33525121 is a prime.

It is a super-2 number, since 2×33525121² = 2247867476129282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33525092 and 33525101.

It is not an unprimeable number, because it can be changed into a prime (33525181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2394645 + ... + 2394658.

It is an arithmetic number, because the mean of its divisors is an integer number (9578608).

Almost surely, 2^33525121 is an apocalyptic number.

It is an amenable number.

33525121 is a deficient number, since it is larger than the sum of its proper divisors (4789311).

33525121 is an equidigital number, since it uses as much as digits as its factorization.

33525121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4789310.

The product of its digits is 900, while the sum is 22.

The square root of 33525121 is about 5790.0881685860. The cubic root of 33525121 is about 322.4458447214.

Adding to 33525121 its reverse (12152533), we get a palindrome (45677654).

The spelling of 33525121 in words is "thirty-three million, five hundred twenty-five thousand, one hundred twenty-one".