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12535025 = 52501401
BaseRepresentation
bin101111110100…
…010011110001
3212120211211012
4233310103301
511202110100
61124400305
7211355156
oct57642361
925524735
1012535025
117091828
124246095
13279b699
14194422d
151179135
hexbf44f1

12535025 has 6 divisors (see below), whose sum is σ = 15543462. Its totient is φ = 10028000.

The previous prime is 12535021. The next prime is 12535063. The reversal of 12535025 is 52053521.

12535025 = 25032 + 25042.

It can be written as a sum of positive squares in 3 ways, for example, as 2900209 + 9634816 = 1703^2 + 3104^2 .

It is not a de Polignac number, because 12535025 - 22 = 12535021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12535021) 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, 250676 + ... + 250725.

It is an arithmetic number, because the mean of its divisors is an integer number (2590577).

Almost surely, 212535025 is an apocalyptic number.

12535025 is the 2504-th centered square number.

It is an amenable number.

12535025 is a deficient number, since it is larger than the sum of its proper divisors (3008437).

12535025 is an equidigital number, since it uses as much as digits as its factorization.

12535025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501411 (or 501406 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 12535025 is about 3540.4837240129. The cubic root of 12535025 is about 232.2960017378.

Adding to 12535025 its reverse (52053521), we get a palindrome (64588546).

The spelling of 12535025 in words is "twelve million, five hundred thirty-five thousand, twenty-five".

Divisors: 1 5 25 501401 2507005 12535025