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55603345 = 5717113827
BaseRepresentation
bin1101010000011…
…1000010010001
310212121221110011
43110013002101
5103213301340
65303434521
71243422610
oct324070221
9125557404
1055603345
1129428686
1216755a41
13b69a9b5
147555877
154d350ea
hex3507091

55603345 has 32 divisors (see below), whose sum is σ = 81554688. Its totient is φ = 35524608.

The previous prime is 55603321. The next prime is 55603349. The reversal of 55603345 is 54330655.

It is not a de Polignac number, because 55603345 - 25 = 55603313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55603349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66822 + ... + 67648.

It is an arithmetic number, because the mean of its divisors is an integer number (2548584).

Almost surely, 255603345 is an apocalyptic number.

It is an amenable number.

55603345 is a deficient number, since it is larger than the sum of its proper divisors (25951343).

55603345 is a wasteful number, since it uses less digits than its factorization.

55603345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969.

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 55603345 is about 7456.7650492690. The cubic root of 55603345 is about 381.6807933428.

The spelling of 55603345 in words is "fifty-five million, six hundred three thousand, three hundred forty-five".

Divisors: 1 5 7 17 35 85 113 119 565 595 791 827 1921 3955 4135 5789 9605 13447 14059 28945 67235 70295 93451 98413 467255 492065 654157 1588667 3270785 7943335 11120669 55603345