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55227808 = 251725869
BaseRepresentation
bin1101001010101…
…1010110100000
310211220212022101
43102223112200
5103114242213
65251420144
71240300006
oct322532640
9124825271
1055227808
11291a1519
12165b4654
13b598a9c
147498a76
154cadbdd
hex34ab5a0

55227808 has 12 divisors (see below), whose sum is σ = 108729810. Its totient is φ = 27613888.

The previous prime is 55227787. The next prime is 55227811. The reversal of 55227808 is 80872255.

It can be written as a sum of positive squares in only one way, i.e., 42354064 + 12873744 = 6508^2 + 3588^2 .

It is a super-2 number, since 2×552278082 = 6100221552969728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 862903 + ... + 862966.

Almost surely, 255227808 is an apocalyptic number.

It is an amenable number.

55227808 is a deficient number, since it is larger than the sum of its proper divisors (53502002).

55227808 is a wasteful number, since it uses less digits than its factorization.

55227808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725879 (or 1725871 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 55227808 is about 7431.5414282637. The cubic root of 55227808 is about 380.8195791783.

The spelling of 55227808 in words is "fifty-five million, two hundred twenty-seven thousand, eight hundred eight".

Divisors: 1 2 4 8 16 32 1725869 3451738 6903476 13806952 27613904 55227808