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55377489 = 3149123887
BaseRepresentation
bin1101001100111…
…1111001010001
310212012110122010
43103033321101
5103134034424
65254533133
71241462256
oct323177121
9125173563
1055377489
1129293a22
12166671a9
13b61bc5b
1474d742d
154cdd229
hex34cfe51

55377489 has 8 divisors (see below), whose sum is σ = 74332800. Its totient is φ = 36670256.

The previous prime is 55377481. The next prime is 55377503. The reversal of 55377489 is 98477355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55377489 - 23 = 55377481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55377481) 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, 61497 + ... + 62390.

It is an arithmetic number, because the mean of its divisors is an integer number (9291600).

Almost surely, 255377489 is an apocalyptic number.

It is an amenable number.

55377489 is a deficient number, since it is larger than the sum of its proper divisors (18955311).

55377489 is a wasteful number, since it uses less digits than its factorization.

55377489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124039.

The product of its digits is 1058400, while the sum is 48.

The square root of 55377489 is about 7441.6052703701. The cubic root of 55377489 is about 381.1633072076.

The spelling of 55377489 in words is "fifty-five million, three hundred seventy-seven thousand, four hundred eighty-nine".

Divisors: 1 3 149 447 123887 371661 18459163 55377489