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55376279 = 719597057
BaseRepresentation
bin1101001100111…
…1100110010111
310212012101222022
43103033212113
5103134020104
65254523355
71241455610
oct323174627
9125171868
1055376279
1129293022
121666655b
13b61b53a
1474d6c07
154cdcbbe
hex34cf997

55376279 has 16 divisors (see below), whose sum is σ = 67756800. Its totient is φ = 44198784.

The previous prime is 55376221. The next prime is 55376287. The reversal of 55376279 is 97267355.

It is not a de Polignac number, because 55376279 - 212 = 55372183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55376579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4319 + ... + 11375.

It is an arithmetic number, because the mean of its divisors is an integer number (4234800).

Almost surely, 255376279 is an apocalyptic number.

55376279 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

55376279 is a deficient number, since it is larger than the sum of its proper divisors (12380521).

55376279 is a wasteful number, since it uses less digits than its factorization.

55376279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7142.

The product of its digits is 396900, while the sum is 44.

The square root of 55376279 is about 7441.5239702631. The cubic root of 55376279 is about 381.1605310437.

It can be divided in two parts, 55376 and 279, that added together give a palindrome (55655).

The spelling of 55376279 in words is "fifty-five million, three hundred seventy-six thousand, two hundred seventy-nine".

Divisors: 1 7 19 59 133 413 1121 7057 7847 49399 134083 416363 938581 2914541 7910897 55376279