550965 has 16 divisors (see below), whose sum is σ = 920448. Its totient is φ = 280896.
The previous prime is 550961. The next prime is 550969. The reversal of 550965 is 569055.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (550961) and next prime (550969).
It is not a de Polignac number, because 550965 - 22 = 550961 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (550961) 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, 454 + ... + 1143.
It is an arithmetic number, because the mean of its divisors is an integer number (57528).
2550965 is an apocalyptic number.
It is an amenable number.
550965 is a deficient number, since it is larger than the sum of its proper divisors (369483).
550965 is a wasteful number, since it uses less digits than its factorization.
550965 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1628.
The product of its (nonzero) digits is 6750, while the sum is 30.
The square root of 550965 is about 742.2701664488. The cubic root of 550965 is about 81.9800169430.
The spelling of 550965 in words is "five hundred fifty thousand, nine hundred sixty-five".
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