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530525525 = 5221221021
BaseRepresentation
bin11111100111110…
…010110101010101
31100222021111012112
4133213302311111
52041303304100
6124351000405
716101251435
oct3747626525
91328244175
10530525525
11252516752
12129809105
1385bb233a
14506602c5
1531897b35
hex1f9f2d55

530525525 has 6 divisors (see below), whose sum is σ = 657851682. Its totient is φ = 424420400.

The previous prime is 530525509. The next prime is 530525549. The reversal of 530525525 is 525525035.

It can be written as a sum of positive squares in 3 ways, for example, as 43970161 + 486555364 = 6631^2 + 22058^2 .

It is not a de Polignac number, because 530525525 - 24 = 530525509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 530525491 and 530525500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10610486 + ... + 10610535.

It is an arithmetic number, because the mean of its divisors is an integer number (109641947).

Almost surely, 2530525525 is an apocalyptic number.

It is an amenable number.

530525525 is a deficient number, since it is larger than the sum of its proper divisors (127326157).

530525525 is a wasteful number, since it uses less digits than its factorization.

530525525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21221031 (or 21221026 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 32.

The square root of 530525525 is about 23033.1397121626. The cubic root of 530525525 is about 809.5346231886.

The spelling of 530525525 in words is "five hundred thirty million, five hundred twenty-five thousand, five hundred twenty-five".

Divisors: 1 5 25 21221021 106105105 530525525