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52750025 = 522110001
BaseRepresentation
bin1100100100111…
…0011011001001
310200020222102122
43021032123021
5102001000100
65122341025
71210240106
oct311163311
9120228378
1052750025
1127859969
12157ba775
13ac0c043
147011aad
15496e985
hex324e6c9

52750025 has 6 divisors (see below), whose sum is σ = 65410062. Its totient is φ = 42200000.

The previous prime is 52750007. The next prime is 52750039. The reversal of 52750025 is 52005725.

52750025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 100489 + 52649536 = 317^2 + 7256^2 .

It is not a de Polignac number, because 52750025 - 28 = 52749769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52749976 and 52750003.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1054976 + ... + 1055025.

It is an arithmetic number, because the mean of its divisors is an integer number (10901677).

Almost surely, 252750025 is an apocalyptic number.

It is an amenable number.

52750025 is a deficient number, since it is larger than the sum of its proper divisors (12660037).

52750025 is a wasteful number, since it uses less digits than its factorization.

52750025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110011 (or 2110006 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 52750025 is about 7262.9212442377. The cubic root of 52750025 is about 375.0370926272.

The spelling of 52750025 in words is "fifty-two million, seven hundred fifty thousand, twenty-five".

Divisors: 1 5 25 2110001 10550005 52750025