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265625053 = 1378532273
BaseRepresentation
bin11111101010100…
…01110111011101
3200111211011001221
433311101313131
51021000000203
642205133341
76403530031
oct1765216735
9614734057
10265625053
11126a36041
1274b5a251
13430536b5
14273c61c1
15184bdabd
hexfd51ddd

265625053 has 8 divisors (see below), whose sum is σ = 267995448. Its totient is φ = 263261184.

The previous prime is 265625011. The next prime is 265625057. The reversal of 265625053 is 350526562.

It can be written as a sum of positive squares in 4 ways, for example, as 38278969 + 227346084 = 6187^2 + 15078^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-265625053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265625057) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 115725 + ... + 117997.

It is an arithmetic number, because the mean of its divisors is an integer number (33499431).

Almost surely, 2265625053 is an apocalyptic number.

It is an amenable number.

265625053 is a deficient number, since it is larger than the sum of its proper divisors (2370395).

265625053 is a wasteful number, since it uses less digits than its factorization.

265625053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 265625053 is about 16298.0076389723. The cubic root of 265625053 is about 642.8204404184.

The spelling of 265625053 in words is "two hundred sixty-five million, six hundred twenty-five thousand, fifty-three".

Divisors: 1 137 853 2273 116861 311401 1938869 265625053