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52511375 = 53760013
BaseRepresentation
bin1100100001010…
…0001010001111
310122210212001202
43020110022033
5101420331000
65113300115
71205224250
oct310241217
9118725052
1052511375
1127706634
121570463b
13ab57527
146d8cb27
154923dd5
hex321428f

52511375 has 16 divisors (see below), whose sum is σ = 74897472. Its totient is φ = 36007200.

The previous prime is 52511363. The next prime is 52511377. The reversal of 52511375 is 57311525.

It is a happy number.

It is not a de Polignac number, because 52511375 - 26 = 52511311 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 (52511377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29132 + ... + 30881.

It is an arithmetic number, because the mean of its divisors is an integer number (4681092).

Almost surely, 252511375 is an apocalyptic number.

52511375 is a deficient number, since it is larger than the sum of its proper divisors (22386097).

52511375 is an equidigital number, since it uses as much as digits as its factorization.

52511375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60035 (or 60025 counting only the distinct ones).

The product of its digits is 5250, while the sum is 29.

The square root of 52511375 is about 7246.4732801550. The cubic root of 52511375 is about 374.4706605583.

The spelling of 52511375 in words is "fifty-two million, five hundred eleven thousand, three hundred seventy-five".

Divisors: 1 5 7 25 35 125 175 875 60013 300065 420091 1500325 2100455 7501625 10502275 52511375