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55124323 = 431281961
BaseRepresentation
bin1101001001001…
…0000101100011
310211201121100121
43102102011203
5103102434243
65245301111
71236356212
oct322220543
9124647317
1055124323
11291307a1
1216564797
13b560957
14746d079
154c8d1ed
hex3492163

55124323 has 4 divisors (see below), whose sum is σ = 56406328. Its totient is φ = 53842320.

The previous prime is 55124309. The next prime is 55124341. The reversal of 55124323 is 32342155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55124323 - 25 = 55124291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55124423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640938 + ... + 641023.

It is an arithmetic number, because the mean of its divisors is an integer number (14101582).

Almost surely, 255124323 is an apocalyptic number.

55124323 is a deficient number, since it is larger than the sum of its proper divisors (1282005).

55124323 is a wasteful number, since it uses less digits than its factorization.

55124323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282004.

The product of its digits is 3600, while the sum is 25.

The square root of 55124323 is about 7424.5756107673. The cubic root of 55124323 is about 380.5815725414.

Adding to 55124323 its reverse (32342155), we get a palindrome (87466478).

The spelling of 55124323 in words is "fifty-five million, one hundred twenty-four thousand, three hundred twenty-three".

Divisors: 1 43 1281961 55124323