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25413025 = 5211231271
BaseRepresentation
bin110000011110…
…0010110100001
31202211010010011
41200330112201
523001204100
62304404521
7426002311
oct140742641
952733104
1025413025
1113388200
128616741
13535a1c1
143537441
15236ebba
hex183c5a1

25413025 has 36 divisors (see below), whose sum is σ = 35886592. Its totient is φ = 17820000.

The previous prime is 25413001. The next prime is 25413029. The reversal of 25413025 is 52031452.

It is not a de Polignac number, because 25413025 - 211 = 25410977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25412987 and 25413005.

It is not an unprimeable number, because it can be changed into a prime (25413029) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 93640 + ... + 93910.

Almost surely, 225413025 is an apocalyptic number.

25413025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25413025 is a deficient number, since it is larger than the sum of its proper divisors (10473567).

25413025 is a wasteful number, since it uses less digits than its factorization.

25413025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 25413025 is about 5041.1333051210. The cubic root of 25413025 is about 294.0032432116.

Adding to 25413025 its reverse (52031452), we get a palindrome (77444477).

The spelling of 25413025 in words is "twenty-five million, four hundred thirteen thousand, twenty-five".

Divisors: 1 5 11 25 31 55 121 155 271 275 341 605 775 1355 1705 2981 3025 3751 6775 8401 8525 14905 18755 32791 42005 74525 92411 93775 163955 210025 462055 819775 1016521 2310275 5082605 25413025