33172056 has 48 divisors (see below), whose sum is σ = 92944800. Its totient is φ = 10675392.

The previous prime is 33172037. The next prime is 33172067. The reversal of 33172056 is 65027133.

It is a happy number.

It is a super-2 number, since 2×33172056² = 2200770598534272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5856 + ... + 10031.

It is an arithmetic number, because the mean of its divisors is an integer number (1936350).

Almost surely, 2^33172056 is an apocalyptic number.

33172056 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

33172056 is an abundant number, since it is smaller than the sum of its proper divisors (59772744).

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

33172056 is a wasteful number, since it uses less digits than its factorization.

33172056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15928 (or 15921 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 33172056 is about 5759.5187298940. The cubic root of 33172056 is about 321.3099170087.

Adding to 33172056 its reverse (65027133), we get a palindrome (98199189).

It can be divided in two parts, 331720 and 56, that added together give a 4-th power (331776 = 24⁴).

The spelling of 33172056 in words is "thirty-three million, one hundred seventy-two thousand, fifty-six".