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53112505 = 5171932887
BaseRepresentation
bin1100101010011…
…0111010111001
310200221101122211
43022212322321
5102044100010
65134215121
71213306645
oct312467271
9120841584
1053112505
1127a87236
12159544a1
13b008024
1470a7c25
1549e208a
hex32a6eb9

53112505 has 16 divisors (see below), whose sum is σ = 71038080. Its totient is φ = 37884672.

The previous prime is 53112481. The next prime is 53112511. The reversal of 53112505 is 50521135.

It is a cyclic number.

It is not a de Polignac number, because 53112505 - 223 = 44723897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14829 + ... + 18058.

It is an arithmetic number, because the mean of its divisors is an integer number (4439880).

Almost surely, 253112505 is an apocalyptic number.

It is an amenable number.

53112505 is a deficient number, since it is larger than the sum of its proper divisors (17925575).

53112505 is a wasteful number, since it uses less digits than its factorization.

53112505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32928.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 53112505 is about 7287.8326682217. The cubic root of 53112505 is about 375.8941743262.

The spelling of 53112505 in words is "fifty-three million, one hundred twelve thousand, five hundred five".

Divisors: 1 5 17 19 85 95 323 1615 32887 164435 559079 624853 2795395 3124265 10622501 53112505