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56225 = 5213173
BaseRepresentation
bin1101101110100001
32212010102
431232201
53244400
61112145
7322631
oct155641
985112
1056225
1139274
1228655
131c790
14166c1
15119d5
hexdba1

56225 has 12 divisors (see below), whose sum is σ = 75516. Its totient is φ = 41280.

The previous prime is 56209. The next prime is 56237. The reversal of 56225 is 52265.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 529 + 55696 = 23^2 + 236^2 .

It is not a de Polignac number, because 56225 - 24 = 56209 is a prime.

It is a super-2 number, since 2×562252 = 6322501250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 56197 and 56206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239 + ... + 411.

It is an arithmetic number, because the mean of its divisors is an integer number (6293).

256225 is an apocalyptic number.

It is an amenable number.

56225 is a deficient number, since it is larger than the sum of its proper divisors (19291).

56225 is a wasteful number, since it uses less digits than its factorization.

56225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 191 counting only the distinct ones).

The product of its digits is 600, while the sum is 20.

The square root of 56225 is about 237.1181140276. The cubic root of 56225 is about 38.3097944124.

It can be divided in two parts, 5 and 6225, that multiplied together give a triangular number (31125 = T249).

The spelling of 56225 in words is "fifty-six thousand, two hundred twenty-five".

Divisors: 1 5 13 25 65 173 325 865 2249 4325 11245 56225