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55262623 = 135380207
BaseRepresentation
bin1101001011001…
…1110110011111
310211222122001211
43102303312133
5103121400443
65252245251
71240503343
oct322636637
9124878054
1055262623
1129215699
1216610827
13b5ab8a0
1474a7623
154cb919d
hex34b3d9f

55262623 has 8 divisors (see below), whose sum is σ = 60637248. Its totient is φ = 50048544.

The previous prime is 55262617. The next prime is 55262651. The reversal of 55262623 is 32626255.

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

It is not a de Polignac number, because 55262623 - 217 = 55131551 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 (55262323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39415 + ... + 40792.

It is an arithmetic number, because the mean of its divisors is an integer number (7579656).

Almost surely, 255262623 is an apocalyptic number.

55262623 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

55262623 is a deficient number, since it is larger than the sum of its proper divisors (5374625).

55262623 is a wasteful number, since it uses less digits than its factorization.

55262623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80273.

The product of its digits is 21600, while the sum is 31.

The square root of 55262623 is about 7433.8834400332. The cubic root of 55262623 is about 380.8995838544.

Adding to 55262623 its reverse (32626255), we get a palindrome (87888878).

The spelling of 55262623 in words is "fifty-five million, two hundred sixty-two thousand, six hundred twenty-three".

Divisors: 1 13 53 689 80207 1042691 4250971 55262623