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55368065 = 517238317
BaseRepresentation
bin1101001100110…
…1100110000001
310212011222201002
43103031212001
5103133234230
65254421345
71241422634
oct323154601
9125158632
1055368065
1129287935
1216661855
13b61788c
1474d3c1b
154cda545
hex34cd981

55368065 has 12 divisors (see below), whose sum is σ = 70581756. Its totient is φ = 41687808.

The previous prime is 55368059. The next prime is 55368073. The reversal of 55368065 is 56086355.

It can be written as a sum of positive squares in 6 ways, for example, as 4844401 + 50523664 = 2201^2 + 7108^2 .

It is a de Polignac number, because none of the positive numbers 2k-55368065 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17714 + ... + 20603.

It is an arithmetic number, because the mean of its divisors is an integer number (5881813).

Almost surely, 255368065 is an apocalyptic number.

It is an amenable number.

55368065 is a deficient number, since it is larger than the sum of its proper divisors (15213691).

55368065 is a wasteful number, since it uses less digits than its factorization.

55368065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38356 (or 38339 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 55368065 is about 7440.9720467154. The cubic root of 55368065 is about 381.1416841808.

The spelling of 55368065 in words is "fifty-five million, three hundred sixty-eight thousand, sixty-five".

Divisors: 1 5 17 85 289 1445 38317 191585 651389 3256945 11073613 55368065