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55950029 = 113495133
BaseRepresentation
bin1101010101101…
…1101011001101
310220021120000022
43111123223031
5103310400104
65315111525
71246365422
oct325335315
9126246008
1055950029
11296450a3
12168a25a5
13b78c735
147605d49
154da2bbe
hex355bacd

55950029 has 4 divisors (see below), whose sum is σ = 56445276. Its totient is φ = 55454784.

The previous prime is 55950001. The next prime is 55950049. The reversal of 55950029 is 92005955.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21996100 + 33953929 = 4690^2 + 5827^2 .

It is a cyclic number.

It is not a de Polignac number, because 55950029 - 220 = 54901453 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 (55950049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247454 + ... + 247679.

It is an arithmetic number, because the mean of its divisors is an integer number (14111319).

Almost surely, 255950029 is an apocalyptic number.

It is an amenable number.

55950029 is a deficient number, since it is larger than the sum of its proper divisors (495247).

55950029 is a wasteful number, since it uses less digits than its factorization.

55950029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495246.

The product of its (nonzero) digits is 20250, while the sum is 35.

The square root of 55950029 is about 7479.9752004936. The cubic root of 55950029 is about 382.4724037789.

The spelling of 55950029 in words is "fifty-five million, nine hundred fifty thousand, twenty-nine".

Divisors: 1 113 495133 55950029