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55580560 = 245799251
BaseRepresentation
bin1101010000000…
…1011110010000
310212120210012021
43110001132100
5103212034220
65303141224
71243266310
oct324013620
9125523167
1055580560
1129412552
1216744814
13b690509
14754b440
154d2d4aa
hex3501790

55580560 has 40 divisors (see below), whose sum is σ = 147686976. Its totient is φ = 19056000.

The previous prime is 55580557. The next prime is 55580563. The reversal of 55580560 is 6508555.

It is an interprime number because it is at equal distance from previous prime (55580557) and next prime (55580563).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (55580563) 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, 49066 + ... + 50185.

Almost surely, 255580560 is an apocalyptic number.

It is an amenable number.

55580560 is an abundant number, since it is smaller than the sum of its proper divisors (92106416).

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

55580560 is a wasteful number, since it uses less digits than its factorization.

55580560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99271 (or 99265 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

The square root of 55580560 is about 7455.2370854320. The cubic root of 55580560 is about 381.6286514855.

The spelling of 55580560 in words is "fifty-five million, five hundred eighty thousand, five hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 99251 198502 397004 496255 694757 794008 992510 1389514 1588016 1985020 2779028 3473785 3970040 5558056 6947570 7940080 11116112 13895140 27790280 55580560