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525383525 = 5297216653
BaseRepresentation
bin11111010100001…
…011011101100101
31100121121020201002
4133110023131211
52033444233100
6124044443045
716006454252
oct3724133545
91317536632
10525383525
1124a624467
12127b49485
1384b01a34
144dac2429
15311ce2d5
hex1f50b765

525383525 has 12 divisors (see below), whose sum is σ = 658194852. Its totient is φ = 415971840.

The previous prime is 525383501. The next prime is 525383543.

It is a happy number.

525383525 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 6 ways, for example, as 1110916 + 524272609 = 1054^2 + 22897^2 .

It is not a de Polignac number, because 525383525 - 224 = 508606309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105902 + ... + 110751.

It is an arithmetic number, because the mean of its divisors is an integer number (54849571).

Almost surely, 2525383525 is an apocalyptic number.

It is an amenable number.

525383525 is a deficient number, since it is larger than the sum of its proper divisors (132811327).

525383525 is a wasteful number, since it uses less digits than its factorization.

525383525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216760 (or 216755 counting only the distinct ones).

The product of its digits is 180000, while the sum is 38.

The square root of 525383525 is about 22921.2461484972. The cubic root of 525383525 is about 806.9107165368.

The spelling of 525383525 in words is "five hundred twenty-five million, three hundred eighty-three thousand, five hundred twenty-five".

Divisors: 1 5 25 97 485 2425 216653 1083265 5416325 21015341 105076705 525383525