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8752025 = 521720593
BaseRepresentation
bin100001011000…
…101110011001
3121110122112002
4201120232121
54220031100
6511330345
7134251052
oct41305631
917418462
108752025
114a38587
122b209b5
131a75819
14123b729
15b7d2d5
hex858b99

8752025 has 12 divisors (see below), whose sum is σ = 11491452. Its totient is φ = 6589440.

The previous prime is 8751973. The next prime is 8752031. The reversal of 8752025 is 5202578.

It can be written as a sum of positive squares in 6 ways, for example, as 839056 + 7912969 = 916^2 + 2813^2 .

It is not a de Polignac number, because 8752025 - 212 = 8747929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9872 + ... + 10721.

It is an arithmetic number, because the mean of its divisors is an integer number (957621).

Almost surely, 28752025 is an apocalyptic number.

8752025 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8752025 is a deficient number, since it is larger than the sum of its proper divisors (2739427).

8752025 is a wasteful number, since it uses less digits than its factorization.

8752025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20620 (or 20615 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 8752025 is about 2958.3821592215. The cubic root of 8752025 is about 206.0801601504.

The spelling of 8752025 in words is "eight million, seven hundred fifty-two thousand, twenty-five".

Divisors: 1 5 17 25 85 425 20593 102965 350081 514825 1750405 8752025