33122725 has 24 divisors (see below), whose sum is σ = 43013120. Its totient is φ = 25272000.

The previous prime is 33122717. The next prime is 33122729. The reversal of 33122725 is 52722133.

It is not a de Polignac number, because 33122725 - 2³ = 33122717 is a prime.

It is a super-2 number, since 2×33122725² = 2194229822851250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 33122725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33122729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60955 + ... + 61495.

Almost surely, 2^33122725 is an apocalyptic number.

It is an amenable number.

33122725 is a deficient number, since it is larger than the sum of its proper divisors (9890395).

33122725 is a wasteful number, since it uses less digits than its factorization.

33122725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 656 counting only the distinct ones).

The product of its digits is 2520, while the sum is 25.

The square root of 33122725 is about 5755.2345738467. The cubic root of 33122725 is about 321.1505619654.

Adding to 33122725 its reverse (52722133), we get a palindrome (85844858).

The spelling of 33122725 in words is "thirty-three million, one hundred twenty-two thousand, seven hundred twenty-five".