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55045777 is a prime number
BaseRepresentation
bin1101000111111…
…0111010010001
310211120121121111
43101332322101
5103042431102
65243453321
71235611213
oct321767221
9124517544
1055045777
1129087786
1216527241
13b533c87
14744c5b3
154c74cd7
hex347ee91

55045777 has 2 divisors, whose sum is σ = 55045778. Its totient is φ = 55045776.

The previous prime is 55045769. The next prime is 55045787. The reversal of 55045777 is 77754055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48497296 + 6548481 = 6964^2 + 2559^2 .

It is a cyclic number.

It is not a de Polignac number, because 55045777 - 23 = 55045769 is a prime.

It is not a weakly prime, because it can be changed into another prime (55045787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27522888 + 27522889.

It is an arithmetic number, because the mean of its divisors is an integer number (27522889).

Almost surely, 255045777 is an apocalyptic number.

It is an amenable number.

55045777 is a deficient number, since it is larger than the sum of its proper divisors (1).

55045777 is an equidigital number, since it uses as much as digits as its factorization.

55045777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 171500, while the sum is 40.

The square root of 55045777 is about 7419.2841298875. The cubic root of 55045777 is about 380.4007245482.

The spelling of 55045777 in words is "fifty-five million, forty-five thousand, seven hundred seventy-seven".