33162561 has 8 divisors (see below), whose sum is σ = 49129760. Its totient is φ = 22108356.

The previous prime is 33162551. The next prime is 33162583. The reversal of 33162561 is 16526133.

33162561 is a `hidden beast` number, since 3 + 31 + 625 + 6 + 1 = 666.

It is not a de Polignac number, because 33162561 - 2²² = 28968257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1228243 = 33162561 / (3 + 3 + 1 + 6 + 2 + 5 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33162551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614095 + ... + 614148.

It is an arithmetic number, because the mean of its divisors is an integer number (6141220).

Almost surely, 2^33162561 is an apocalyptic number.

It is an amenable number.

33162561 is a deficient number, since it is larger than the sum of its proper divisors (15967199).

33162561 is a wasteful number, since it uses less digits than its factorization.

33162561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228252 (or 1228246 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 33162561 is about 5758.6943832782. The cubic root of 33162561 is about 321.2792573797.

Adding to 33162561 its reverse (16526133), we get a palindrome (49688694).

The spelling of 33162561 in words is "thirty-three million, one hundred sixty-two thousand, five hundred sixty-one".