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522925 = 52131609
BaseRepresentation
bin1111111101010101101
3222120022121
41333222231
5113213200
615112541
74305364
oct1775255
9876277
10522925
11327977
12212751
13154030
14d87db
15a4e1a
hex7faad

522925 has 12 divisors (see below), whose sum is σ = 698740. Its totient is φ = 385920.

The previous prime is 522919. The next prime is 522943. The reversal of 522925 is 529225.

It can be written as a sum of positive squares in 6 ways, for example, as 196 + 522729 = 14^2 + 723^2 .

It is not a de Polignac number, because 522925 - 29 = 522413 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 522925.

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, 480 + ... + 1129.

2522925 is an apocalyptic number.

It is an amenable number.

522925 is a deficient number, since it is larger than the sum of its proper divisors (175815).

522925 is a wasteful number, since it uses less digits than its factorization.

522925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632 (or 1627 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 522925 is about 723.1355336311. The cubic root of 522925 is about 80.5650105606.

Subtracting from 522925 its product of digits (1800), we obtain a palindrome (521125).

It can be divided in two parts, 52 and 2925, that multiplied together give a square (152100 = 3902).

The spelling of 522925 in words is "five hundred twenty-two thousand, nine hundred twenty-five".

Divisors: 1 5 13 25 65 325 1609 8045 20917 40225 104585 522925