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53065253 = 201726309
BaseRepresentation
bin1100101001101…
…1011000100101
310200211222211202
43022123120211
5102041042003
65133212245
71213022123
oct312333045
9120758752
1053065253
1127a5478a
1215931085
13acbc677
147094913
1549d3088
hex329b625

53065253 has 4 divisors (see below), whose sum is σ = 53093580. Its totient is φ = 53036928.

The previous prime is 53065241. The next prime is 53065267. The reversal of 53065253 is 35256035.

It is a happy number.

53065253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35256035 = 57051207.

It can be written as a sum of positive squares in 2 ways, for example, as 23493409 + 29571844 = 4847^2 + 5438^2 .

It is a cyclic number.

It is not a de Polignac number, because 53065253 - 24 = 53065237 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 (53065213) 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 3 ways as a sum of consecutive naturals, for example, 11138 + ... + 15171.

It is an arithmetic number, because the mean of its divisors is an integer number (13273395).

Almost surely, 253065253 is an apocalyptic number.

It is an amenable number.

53065253 is a deficient number, since it is larger than the sum of its proper divisors (28327).

53065253 is a wasteful number, since it uses less digits than its factorization.

53065253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28326.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 53065253 is about 7284.5901051466. The cubic root of 53065253 is about 375.7826687500.

The spelling of 53065253 in words is "fifty-three million, sixty-five thousand, two hundred fifty-three".

Divisors: 1 2017 26309 53065253