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25131252 = 2232094271
BaseRepresentation
bin101111111011…
…1100011110100
31202021210121010
41133313203310
522413200002
62254352220
7423416646
oct137674364
952253533
1025131252
1113205533
1284bb670
13528bb83
1434a2896
15231646c
hex17f78f4

25131252 has 12 divisors (see below), whose sum is σ = 58639616. Its totient is φ = 8377080.

The previous prime is 25131241. The next prime is 25131257. The reversal of 25131252 is 25213152.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25131257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047124 + ... + 1047147.

Almost surely, 225131252 is an apocalyptic number.

It is an amenable number.

25131252 is an abundant number, since it is smaller than the sum of its proper divisors (33508364).

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

25131252 is a wasteful number, since it uses less digits than its factorization.

25131252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094278 (or 2094276 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 25131252 is about 5013.1080179864. The cubic root of 25131252 is about 292.9125918180.

The spelling of 25131252 in words is "twenty-five million, one hundred thirty-one thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 2094271 4188542 6282813 8377084 12565626 25131252