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52529225 = 5272137313
BaseRepresentation
bin1100100001100…
…0100001001001
310122211202112212
43020120201021
5101421413400
65113514505
71205330300
oct310304111
9118752485
1052529225
1127718a91
1215712a35
13ab626a8
146d95437
154929335
hex3218849

52529225 has 36 divisors (see below), whose sum is σ = 76567644. Its totient is φ = 35642880.

The previous prime is 52529219. The next prime is 52529227. The reversal of 52529225 is 52292525.

It can be written as a sum of positive squares in 6 ways, for example, as 9966649 + 42562576 = 3157^2 + 6524^2 .

It is not a de Polignac number, because 52529225 - 24 = 52529209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52529191 and 52529200.

It is not an unprimeable number, because it can be changed into a prime (52529227) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 167669 + ... + 167981.

It is an arithmetic number, because the mean of its divisors is an integer number (2126879).

Almost surely, 252529225 is an apocalyptic number.

It is an amenable number.

52529225 is a deficient number, since it is larger than the sum of its proper divisors (24038419).

52529225 is a wasteful number, since it uses less digits than its factorization.

52529225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 462 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 52529225 is about 7247.7048091103. The cubic root of 52529225 is about 374.5130865663.

The spelling of 52529225 in words is "fifty-two million, five hundred twenty-nine thousand, two hundred twenty-five".

Divisors: 1 5 7 25 35 49 137 175 245 313 685 959 1225 1565 2191 3425 4795 6713 7825 10955 15337 23975 33565 42881 54775 76685 167825 214405 300167 383425 1072025 1500835 2101169 7504175 10505845 52529225