33052520 has 16 divisors (see below), whose sum is σ = 74368260. Its totient is φ = 13220992.

The previous prime is 33052511. The next prime is 33052531. The reversal of 33052520 is 2525033.

It can be written as a sum of positive squares in 2 ways, for example, as 30625156 + 2427364 = 5534^2 + 1558^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 33052492 and 33052501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413117 + ... + 413196.

Almost surely, 2^33052520 is an apocalyptic number.

It is an amenable number.

33052520 is an abundant number, since it is smaller than the sum of its proper divisors (41315740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33052520 is a wasteful number, since it uses less digits than its factorization.

33052520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826324 (or 826320 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 33052520 is about 5749.1321084143. The cubic root of 33052520 is about 320.9235041240.

Adding to 33052520 its reverse (2525033), we get a palindrome (35577553).

The spelling of 33052520 in words is "thirty-three million, fifty-two thousand, five hundred twenty".