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25056007480 = 2357412721683
BaseRepresentation
bin10111010101011101…
…000101010100111000
32101200012022001122001
4113111131011110320
5402303314214410
615302141110344
71544624356330
oct272535052470
971605261561
1025056007480
11a6985102a9
124a332583b4
13249401613a
1412d99a60c0
159b9a8733a
hex5d5745538

25056007480 has 64 divisors (see below), whose sum is σ = 64448317440. Its totient is φ = 8588153472.

The previous prime is 25056007477. The next prime is 25056007519. The reversal of 25056007480 is 8470065052.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1144719 + ... + 1166401.

It is an arithmetic number, because the mean of its divisors is an integer number (1007004960).

Almost surely, 225056007480 is an apocalyptic number.

25056007480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25056007480 is an abundant number, since it is smaller than the sum of its proper divisors (39392309960).

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

25056007480 is a wasteful number, since it uses less digits than its factorization.

25056007480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25828 (or 25824 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 25056007480 in words is "twenty-five billion, fifty-six million, seven thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 4127 8254 16508 20635 21683 28889 33016 41270 43366 57778 82540 86732 108415 115556 144445 151781 165080 173464 216830 231112 288890 303562 433660 577780 607124 758905 867320 1155560 1214248 1517810 3035620 6071240 89485741 178971482 357942964 447428705 626400187 715885928 894857410 1252800374 1789714820 2505600748 3132000935 3579429640 5011201496 6264001870 12528003740 25056007480