Search a number
-
+
525725 = 52171237
BaseRepresentation
bin10000000010110011101
3222201011022
42000112131
5113310400
615133525
74316504
oct2002635
9881138
10525725
11329a92
122142a5
131553a5
14d983b
15a5b85
hex8059d

525725 has 12 divisors (see below), whose sum is σ = 690804. Its totient is φ = 395520.

The previous prime is 525719. The next prime is 525727. The reversal of 525725 is 527525.

It can be written as a sum of positive squares in 6 ways, for example, as 10201 + 515524 = 101^2 + 718^2 .

It is not a de Polignac number, because 525725 - 24 = 525709 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525694 and 525703.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 525725.

It is not an unprimeable number, because it can be changed into a prime (525727) 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, 194 + ... + 1043.

It is an arithmetic number, because the mean of its divisors is an integer number (57567).

2525725 is an apocalyptic number.

It is an amenable number.

525725 is a deficient number, since it is larger than the sum of its proper divisors (165079).

525725 is a wasteful number, since it uses less digits than its factorization.

525725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264 (or 1259 counting only the distinct ones).

The product of its digits is 3500, while the sum is 26.

The square root of 525725 is about 725.0689622374. The cubic root of 525725 is about 80.7085496895.

Subtracting from 525725 its product of digits (3500), we obtain a palindrome (522225).

The spelling of 525725 in words is "five hundred twenty-five thousand, seven hundred twenty-five".

Divisors: 1 5 17 25 85 425 1237 6185 21029 30925 105145 525725