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55027479 = 3131410961
BaseRepresentation
bin1101000111101…
…0011100010111
310211112200111210
43101322130113
5103041334404
65243232503
71235503653
oct321723427
9124480453
1055027479
1129074a61
1216518733
13b528850
147445a63
154c6e689
hex347a717

55027479 has 8 divisors (see below), whose sum is σ = 79013872. Its totient is φ = 33863040.

The previous prime is 55027433. The next prime is 55027517. The reversal of 55027479 is 97472055.

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

It is not a de Polignac number, because 55027479 - 28 = 55027223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1410961 = 55027479 / (5 + 5 + 0 + 2 + 7 + 4 + 7 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55027979) 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, 705442 + ... + 705519.

It is an arithmetic number, because the mean of its divisors is an integer number (9876734).

Almost surely, 255027479 is an apocalyptic number.

55027479 is a deficient number, since it is larger than the sum of its proper divisors (23986393).

55027479 is a wasteful number, since it uses less digits than its factorization.

55027479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410977.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 55027479 is about 7418.0508895531. The cubic root of 55027479 is about 380.3585696712.

The spelling of 55027479 in words is "fifty-five million, twenty-seven thousand, four hundred seventy-nine".

Divisors: 1 3 13 39 1410961 4232883 18342493 55027479