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523725 = 3526983
BaseRepresentation
bin1111111110111001101
3222121102020
41333313031
5113224400
615120353
74310616
oct1776715
9877366
10523725
11328534
122130b9
131544c7
14d8c0d
15a52a0
hex7fdcd

523725 has 12 divisors (see below), whose sum is σ = 866016. Its totient is φ = 279280.

The previous prime is 523717. The next prime is 523729. The reversal of 523725 is 527325.

It is not a de Polignac number, because 523725 - 23 = 523717 is a prime.

523725 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 523695 and 523704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523729) 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, 3417 + ... + 3566.

It is an arithmetic number, because the mean of its divisors is an integer number (72168).

2523725 is an apocalyptic number.

It is an amenable number.

523725 is a deficient number, since it is larger than the sum of its proper divisors (342291).

523725 is a wasteful number, since it uses less digits than its factorization.

523725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6996 (or 6991 counting only the distinct ones).

The product of its digits is 2100, while the sum is 24.

The square root of 523725 is about 723.6884688870. The cubic root of 523725 is about 80.6060739183.

Adding to 523725 its product of digits (2100), we get a triangular number (525825 = T1025).

Subtracting 523725 from its reverse (527325), we obtain a square (3600 = 602).

The spelling of 523725 in words is "five hundred twenty-three thousand, seven hundred twenty-five".

Divisors: 1 3 5 15 25 75 6983 20949 34915 104745 174575 523725