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53040025 = 522121601
BaseRepresentation
bin1100101001010…
…1001110011001
310200210201020101
43022111032121
5102034240100
65132455401
71212555433
oct312251631
9120721211
1053040025
1127a37835
121591a561
13acb103c
147089653
1549ca86a
hex3295399

53040025 has 6 divisors (see below), whose sum is σ = 65769662. Its totient is φ = 42432000.

The previous prime is 53040023. The next prime is 53040061. The reversal of 53040025 is 52004035.

It is a happy number.

53040025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 665856 + 52374169 = 816^2 + 7237^2 .

It is not a de Polignac number, because 53040025 - 21 = 53040023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53039984 and 53040011.

It is not an unprimeable number, because it can be changed into a prime (53040023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1060776 + ... + 1060825.

Almost surely, 253040025 is an apocalyptic number.

It is an amenable number.

53040025 is a deficient number, since it is larger than the sum of its proper divisors (12729637).

53040025 is a wasteful number, since it uses less digits than its factorization.

53040025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121611 (or 2121606 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 53040025 is about 7282.8582987725. The cubic root of 53040025 is about 375.7231084453.

The spelling of 53040025 in words is "fifty-three million, forty thousand, twenty-five".

Divisors: 1 5 25 2121601 10608005 53040025