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42332525 = 522776113
BaseRepresentation
bin1010000101111…
…1000101101101
32221122201022022
42201133011231
541314120100
64111155525
71022551304
oct241370555
987581268
1042332525
1121994064
1212215ba5
138a02441
14589d43b
153ab2e85
hex285f16d

42332525 has 12 divisors (see below), whose sum is σ = 52690452. Its totient is φ = 33738240.

The previous prime is 42332509. The next prime is 42332527. The reversal of 42332525 is 52523324.

It can be written as a sum of positive squares in 6 ways, for example, as 3556996 + 38775529 = 1886^2 + 6227^2 .

It is not a de Polignac number, because 42332525 - 24 = 42332509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42332494 and 42332503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42332527) 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, 3869 + ... + 9981.

It is an arithmetic number, because the mean of its divisors is an integer number (4390871).

Almost surely, 242332525 is an apocalyptic number.

It is an amenable number.

42332525 is a deficient number, since it is larger than the sum of its proper divisors (10357927).

42332525 is a wasteful number, since it uses less digits than its factorization.

42332525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6400 (or 6395 counting only the distinct ones).

The product of its digits is 7200, while the sum is 26.

The square root of 42332525 is about 6506.3449800944. The cubic root of 42332525 is about 348.5176078825.

Adding to 42332525 its reverse (52523324), we get a palindrome (94855849).

The spelling of 42332525 in words is "forty-two million, three hundred thirty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 277 1385 6113 6925 30565 152825 1693301 8466505 42332525