56228172 has 192 divisors, whose sum is σ = 183042048. Its totient is φ = 12960000.

The previous prime is 56228167. The next prime is 56228173. The reversal of 56228172 is 27182265.

It is a super-3 number, since 3×56228172³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (56228173) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 372297 + ... + 372447.

It is an arithmetic number, because the mean of its divisors is an integer number (953344).

Almost surely, 2^56228172 is an apocalyptic number.

56228172 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56228172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91521024).

56228172 is an abundant number, since it is smaller than the sum of its proper divisors (126813876).

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

56228172 is a wasteful number, since it uses less digits than its factorization.

56228172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 218 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 56228172 is about 7498.5446587988. The cubic root of 56228172 is about 383.1051482963.

The spelling of 56228172 in words is "fifty-six million, two hundred twenty-eight thousand, one hundred seventy-two".