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53207275 = 52111631187
BaseRepresentation
bin1100101011111…
…0000011101011
310201010012122211
43022332003223
5102110113100
65140225551
71214153152
oct312760353
9121105584
1053207275
1128041460
121599b2b7
13b03c1c4
1470d0599
154a101ba
hex32be0eb

53207275 has 24 divisors (see below), whose sum is σ = 72477504. Its totient is φ = 38426400.

The previous prime is 53207251. The next prime is 53207279. The reversal of 53207275 is 57270235.

It is not a de Polignac number, because 53207275 - 29 = 53206763 is a prime.

It is a super-2 number, since 2×532072752 = 5662028225851250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53207279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44232 + ... + 45418.

It is an arithmetic number, because the mean of its divisors is an integer number (3019896).

Almost surely, 253207275 is an apocalyptic number.

53207275 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53207275 is a deficient number, since it is larger than the sum of its proper divisors (19270229).

53207275 is a wasteful number, since it uses less digits than its factorization.

53207275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371 (or 1366 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 53207275 is about 7294.3317034530. The cubic root of 53207275 is about 376.1176140097.

The spelling of 53207275 in words is "fifty-three million, two hundred seven thousand, two hundred seventy-five".

Divisors: 1 5 11 25 55 163 275 815 1187 1793 4075 5935 8965 13057 29675 44825 65285 193481 326425 967405 2128291 4837025 10641455 53207275