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512535025 = 52109318757
BaseRepresentation
bin11110100011001…
…010100111110001
31022201102110212201
4132203022213301
52022202110100
6122505223201
715462322132
oct3643124761
91281373781
10512535025
11243349172
12123791b01
1382253782
144c0d9c89
152eee236a
hex1e8ca9f1

512535025 has 12 divisors (see below), whose sum is σ = 636158812. Its totient is φ = 409631040.

The previous prime is 512535007. The next prime is 512535041. The reversal of 512535025 is 520535215.

It can be written as a sum of positive squares in 6 ways, for example, as 29062881 + 483472144 = 5391^2 + 21988^2 .

It is not a de Polignac number, because 512535025 - 227 = 378317297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 512534984 and 512535002.

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, 17947 + ... + 36703.

Almost surely, 2512535025 is an apocalyptic number.

It is an amenable number.

512535025 is a deficient number, since it is larger than the sum of its proper divisors (123623787).

512535025 is a wasteful number, since it uses less digits than its factorization.

512535025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19860 (or 19855 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 512535025 is about 22639.2364049674. The cubic root of 512535025 is about 800.2785618470.

The spelling of 512535025 in words is "five hundred twelve million, five hundred thirty-five thousand, twenty-five".

Divisors: 1 5 25 1093 5465 18757 27325 93785 468925 20501401 102507005 512535025