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525755525 = 5227777573
BaseRepresentation
bin11111010101100…
…110010010000101
31100122022010222212
4133111212102011
52034043134100
6124100433205
716012563641
oct3725462205
91318263885
10525755525
1124a8589a9
121280a8805
1384c02159
144db7bc21
1531254635
hex1f566485

525755525 has 12 divisors (see below), whose sum is σ = 652257732. Its totient is φ = 420397440.

The previous prime is 525755513. The next prime is 525755537. The reversal of 525755525 is 525557525.

It is an interprime number because it is at equal distance from previous prime (525755513) and next prime (525755537).

It can be written as a sum of positive squares in 6 ways, for example, as 749956 + 525005569 = 866^2 + 22913^2 .

It is not a de Polignac number, because 525755525 - 24 = 525755509 is a prime.

It is a Duffinian number.

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, 65639 + ... + 73211.

It is an arithmetic number, because the mean of its divisors is an integer number (54354811).

Almost surely, 2525755525 is an apocalyptic number.

It is an amenable number.

525755525 is a deficient number, since it is larger than the sum of its proper divisors (126502207).

525755525 is a wasteful number, since it uses less digits than its factorization.

525755525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10360 (or 10355 counting only the distinct ones).

The product of its digits is 437500, while the sum is 41.

The square root of 525755525 is about 22929.3594546381. The cubic root of 525755525 is about 807.1011171073.

The spelling of 525755525 in words is "five hundred twenty-five million, seven hundred fifty-five thousand, five hundred twenty-five".

Divisors: 1 5 25 2777 7573 13885 37865 69425 189325 21030221 105151105 525755525