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5218025 = 52208721
BaseRepresentation
bin10011111001111011101001
3100211002210012
4103321323221
52313434100
6303501305
762231621
oct23717351
910732705
105218025
112a4441a
1218b7835
1311090b7
1499b881
156d1135
hex4f9ee9

5218025 has 6 divisors (see below), whose sum is σ = 6470382. Its totient is φ = 4174400.

The previous prime is 5218021. The next prime is 5218051. The reversal of 5218025 is 5208125.

It can be written as a sum of positive squares in 3 ways, for example, as 1369 + 5216656 = 37^2 + 2284^2 .

It is not a de Polignac number, because 5218025 - 22 = 5218021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5218021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104336 + ... + 104385.

It is an arithmetic number, because the mean of its divisors is an integer number (1078397).

Almost surely, 25218025 is an apocalyptic number.

It is an amenable number.

5218025 is a deficient number, since it is larger than the sum of its proper divisors (1252357).

5218025 is a wasteful number, since it uses less digits than its factorization.

5218025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208731 (or 208726 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 5218025 is about 2284.2996738607. The cubic root of 5218025 is about 173.4477691888.

The spelling of 5218025 in words is "five million, two hundred eighteen thousand, twenty-five".

Divisors: 1 5 25 208721 1043605 5218025