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65253025 = 522610121
BaseRepresentation
bin1111100011101…
…0111010100001
311112210012022201
43320322322201
5113201044100
610250333201
71421433025
oct370727241
9145705281
1065253025
1133919622
1219a2a201
1310698c76
148948385
155ade36a
hex3e3aea1

65253025 has 6 divisors (see below), whose sum is σ = 80913782. Its totient is φ = 52202400.

The previous prime is 65253007. The next prime is 65253031. The reversal of 65253025 is 52035256.

It can be written as a sum of positive squares in 3 ways, for example, as 9437184 + 55815841 = 3072^2 + 7471^2 .

It is not a de Polignac number, because 65253025 - 29 = 65252513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65252984 and 65253002.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1305036 + ... + 1305085.

Almost surely, 265253025 is an apocalyptic number.

It is an amenable number.

65253025 is a deficient number, since it is larger than the sum of its proper divisors (15660757).

65253025 is a wasteful number, since it uses less digits than its factorization.

65253025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610131 (or 2610126 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 65253025 is about 8077.9344513310. The cubic root of 65253025 is about 402.5936153016.

The spelling of 65253025 in words is "sixty-five million, two hundred fifty-three thousand, twenty-five".

Divisors: 1 5 25 2610121 13050605 65253025