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561325 = 5222453
BaseRepresentation
bin10001001000010101101
31001111222211
42021002231
5120430300
620010421
74525342
oct2110255
91044884
10561325
11353806
12230a11
1316865b
141087c9
15b14ba
hex890ad

561325 has 6 divisors (see below), whose sum is σ = 696074. Its totient is φ = 449040.

The previous prime is 561313. The next prime is 561343. The reversal of 561325 is 523165.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 324 + 561001 = 18^2 + 749^2 .

It is not a de Polignac number, because 561325 - 211 = 559277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561296 and 561305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11202 + ... + 11251.

2561325 is an apocalyptic number.

It is an amenable number.

561325 is a deficient number, since it is larger than the sum of its proper divisors (134749).

561325 is a wasteful number, since it uses less digits than its factorization.

561325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22463 (or 22458 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 561325 is about 749.2162571648. The cubic root of 561325 is about 82.4906631613.

The spelling of 561325 in words is "five hundred sixty-one thousand, three hundred twenty-five".

Divisors: 1 5 25 22453 112265 561325