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53507253 = 379225769
BaseRepresentation
bin1100110000011…
…1010010110101
310201200110011010
43030013102311
5102144213003
65150502433
71216542552
oct314072265
9121613133
1053507253
1128226878
1215b04a19
13b1158c7
14716ba29
154a6e003
hex33074b5

53507253 has 8 divisors (see below), whose sum is σ = 72246400. Its totient is φ = 35219808.

The previous prime is 53507231. The next prime is 53507257. The reversal of 53507253 is 35270535.

53507253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 53507253 - 26 = 53507189 is a prime.

It is a super-2 number, since 2×535072532 = 5726052247212018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53507253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53507257) 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 7 ways as a sum of consecutive naturals, for example, 112648 + ... + 113121.

It is an arithmetic number, because the mean of its divisors is an integer number (9030800).

Almost surely, 253507253 is an apocalyptic number.

It is an amenable number.

53507253 is a deficient number, since it is larger than the sum of its proper divisors (18739147).

53507253 is a wasteful number, since it uses less digits than its factorization.

53507253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225851.

The product of its (nonzero) digits is 15750, while the sum is 30.

The square root of 53507253 is about 7314.8652072338. The cubic root of 53507253 is about 376.8231292797.

Adding to 53507253 its reverse (35270535), we get a palindrome (88777788).

The spelling of 53507253 in words is "fifty-three million, five hundred seven thousand, two hundred fifty-three".

Divisors: 1 3 79 237 225769 677307 17835751 53507253