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55580051 = 416720233
BaseRepresentation
bin1101010000000…
…1010110010011
310212120202111102
43110001112103
5103212030201
65303135015
71243264652
oct324012623
9125522442
1055580051
112941212a
121674446b
13b690207
14754b199
154d2d26b
hex3501593

55580051 has 8 divisors (see below), whose sum is σ = 57788304. Its totient is φ = 53412480.

The previous prime is 55580023. The next prime is 55580059. The reversal of 55580051 is 15008555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55580051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55579996 and 55580023.

It is not an unprimeable number, because it can be changed into a prime (55580059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7370 + ... + 12863.

It is an arithmetic number, because the mean of its divisors is an integer number (7223538).

Almost surely, 255580051 is an apocalyptic number.

55580051 is a deficient number, since it is larger than the sum of its proper divisors (2208253).

55580051 is a wasteful number, since it uses less digits than its factorization.

55580051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20341.

The product of its (nonzero) digits is 5000, while the sum is 29.

The square root of 55580051 is about 7455.2029482771. The cubic root of 55580051 is about 381.6274865124.

The spelling of 55580051 in words is "fifty-five million, five hundred eighty thousand, fifty-one".

Divisors: 1 41 67 2747 20233 829553 1355611 55580051