51607 has 2 divisors, whose sum is σ = 51608. Its totient is φ = 51606.
The previous prime is 51599. The next prime is 51613. The reversal of 51607 is 70615.
51607 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 51607 - 23 = 51599 is a prime.
It is a Chen prime.
It is an Ulam number.
It is a nialpdrome in base 9 and base 16.
It is a zygodrome in base 9.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (51637) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25803 + 25804.
It is an arithmetic number, because the mean of its divisors is an integer number (25804).
251607 is an apocalyptic number.
51607 is a deficient number, since it is larger than the sum of its proper divisors (1).
51607 is an equidigital number, since it uses as much as digits as its factorization.
51607 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 210, while the sum is 19.
The square root of 51607 is about 227.1717412004. The cubic root of 51607 is about 37.2308431143.
The spelling of 51607 in words is "fifty-one thousand, six hundred seven".
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