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55208995 = 537298427
BaseRepresentation
bin1101001010011…
…0110000100011
310211212220111121
43102212300203
5103113141440
65251153111
71240161112
oct322466043
9124786447
1055208995
1129189376
12165a5797
13b59035a
147491c79
154ca834a
hex34a6c23

55208995 has 8 divisors (see below), whose sum is σ = 68041584. Its totient is φ = 42973344.

The previous prime is 55208981. The next prime is 55208999. The reversal of 55208995 is 59980255.

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-55208995 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55208999) 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, 149029 + ... + 149398.

It is an arithmetic number, because the mean of its divisors is an integer number (8505198).

Almost surely, 255208995 is an apocalyptic number.

55208995 is a deficient number, since it is larger than the sum of its proper divisors (12832589).

55208995 is a wasteful number, since it uses less digits than its factorization.

55208995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298469.

The product of its (nonzero) digits is 162000, while the sum is 43.

The square root of 55208995 is about 7430.2755668952. The cubic root of 55208995 is about 380.7763330151.

The spelling of 55208995 in words is "fifty-five million, two hundred eight thousand, nine hundred ninety-five".

Divisors: 1 5 37 185 298427 1492135 11041799 55208995