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55060555 = 5119711031
BaseRepresentation
bin1101001000001…
…0100001001011
310211121100212211
43102002201023
5103043414210
65244045551
71236002254
oct322024113
9124540784
1055060555
11290978a0
12165338b7
13b53a914
147453b2b
154c7938a
hex348284b

55060555 has 16 divisors (see below), whose sum is σ = 72223488. Its totient is φ = 39964000.

The previous prime is 55060553. The next prime is 55060559. The reversal of 55060555 is 55506055.

It is not a de Polignac number, because 55060555 - 21 = 55060553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55060553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52890 + ... + 53920.

It is an arithmetic number, because the mean of its divisors is an integer number (4513968).

Almost surely, 255060555 is an apocalyptic number.

55060555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55060555 is a deficient number, since it is larger than the sum of its proper divisors (17162933).

55060555 is a wasteful number, since it uses less digits than its factorization.

55060555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 55060555 is about 7420.2799812406. The cubic root of 55060555 is about 380.4347632412.

The spelling of 55060555 in words is "fifty-five million, sixty thousand, five hundred fifty-five".

Divisors: 1 5 11 55 971 1031 4855 5155 10681 11341 53405 56705 1001101 5005505 11012111 55060555