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25105052 = 2272235569
BaseRepresentation
bin101111111000…
…1001010011100
31202020110122202
41133301022130
522411330202
62254031032
7423250400
oct137611234
952213582
1025105052
1113197885
1284a8478
13527cc7b
143497100
15230d802
hex17f129c

25105052 has 36 divisors (see below), whose sum is σ = 53338320. Its totient is φ = 10289664.

The previous prime is 25105049. The next prime is 25105057. The reversal of 25105052 is 25050152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25105057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1724 + ... + 7292.

It is an arithmetic number, because the mean of its divisors is an integer number (1481620).

Almost surely, 225105052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25105052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26669160).

25105052 is an abundant number, since it is smaller than the sum of its proper divisors (28233268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25105052 is a wasteful number, since it uses less digits than its factorization.

25105052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5610 (or 5601 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 25105052 is about 5010.4941872035. The cubic root of 25105052 is about 292.8107666968.

The spelling of 25105052 in words is "twenty-five million, one hundred five thousand, fifty-two".

Divisors: 1 2 4 7 14 23 28 46 49 92 98 161 196 322 644 1127 2254 4508 5569 11138 22276 38983 77966 128087 155932 256174 272881 512348 545762 896609 1091524 1793218 3586436 6276263 12552526 25105052