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25472025 = 3252113209
BaseRepresentation
bin110000100101…
…0110000011001
31202221010001100
41201022300121
523010101100
62305542013
7426336315
oct141126031
952833040
1025472025
1113418567
128644909
13537b007
143550b45
152382400
hex184ac19

25472025 has 18 divisors (see below), whose sum is σ = 45623630. Its totient is φ = 13584960.

The previous prime is 25472023. The next prime is 25472047. The reversal of 25472025 is 52027452.

It can be written as a sum of positive squares in 3 ways, for example, as 4210704 + 21261321 = 2052^2 + 4611^2 .

It is not a de Polignac number, because 25472025 - 21 = 25472023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25472025.

It is not an unprimeable number, because it can be changed into a prime (25472023) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 56380 + ... + 56829.

Almost surely, 225472025 is an apocalyptic number.

25472025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25472025 is a deficient number, since it is larger than the sum of its proper divisors (20151605).

25472025 is a wasteful number, since it uses less digits than its factorization.

25472025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113225 (or 113217 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 25472025 is about 5046.9817713164. The cubic root of 25472025 is about 294.2305909955.

Adding to 25472025 its reverse (52027452), we get a palindrome (77499477).

The spelling of 25472025 in words is "twenty-five million, four hundred seventy-two thousand, twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 113209 339627 566045 1018881 1698135 2830225 5094405 8490675 25472025