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25005972 = 2236073433
BaseRepresentation
bin101111101100…
…0111110010100
31202001102202010
41133120332110
522400142342
62251544220
7422355465
oct137307624
952042663
1025005972
111312a3a2
12845b070
135246b44
14346cd6c
1522de29c
hex17d8f94

25005972 has 24 divisors (see below), whose sum is σ = 58460416. Its totient is φ = 8319168.

The previous prime is 25005947. The next prime is 25005973. The reversal of 25005972 is 27950052.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25005973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5568 + ... + 9000.

Almost surely, 225005972 is an apocalyptic number.

It is an amenable number.

25005972 is an abundant number, since it is smaller than the sum of its proper divisors (33454444).

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

25005972 is a wasteful number, since it uses less digits than its factorization.

25005972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4047 (or 4045 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 25005972 is about 5000.5971643395. The cubic root of 25005972 is about 292.4250549462.

The spelling of 25005972 in words is "twenty-five million, five thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 607 1214 1821 2428 3433 3642 6866 7284 10299 13732 20598 41196 2083831 4167662 6251493 8335324 12502986 25005972