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556225 = 52191171
BaseRepresentation
bin10000111110011000001
31001020222221
42013303001
5120244400
615531041
74504435
oct2076301
91036887
10556225
1134a99a
12229a81
13166237
141069c5
15aec1a
hex87cc1

556225 has 12 divisors (see below), whose sum is σ = 726640. Its totient is φ = 421200.

The previous prime is 556219. The next prime is 556229. The reversal of 556225 is 522655.

It is a de Polignac number, because none of the positive numbers 2k-556225 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 556225.

It is not an unprimeable number, because it can be changed into a prime (556229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111 + ... + 1060.

2556225 is an apocalyptic number.

It is an amenable number.

556225 is a deficient number, since it is larger than the sum of its proper divisors (170415).

556225 is a wasteful number, since it uses less digits than its factorization.

556225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200 (or 1195 counting only the distinct ones).

The product of its digits is 3000, while the sum is 25.

The square root of 556225 is about 745.8049342824. The cubic root of 556225 is about 82.2400757297.

The spelling of 556225 in words is "five hundred fifty-six thousand, two hundred twenty-five".

Divisors: 1 5 19 25 95 475 1171 5855 22249 29275 111245 556225