51559823 has 8 divisors (see below), whose sum is σ = 59892000. Its totient is φ = 43469280.

The previous prime is 51559817. The next prime is 51559829. The reversal of 51559823 is 32895515.

It is an interprime number because it is at equal distance from previous prime (51559817) and next prime (51559829).

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

It is a cyclic number.

It is not a de Polignac number, because 51559823 - 2²⁴ = 34782607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51559829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59948 + ... + 60801.

It is an arithmetic number, because the mean of its divisors is an integer number (7486500).

Almost surely, 2^51559823 is an apocalyptic number.

51559823 is a deficient number, since it is larger than the sum of its proper divisors (8332177).

51559823 is a wasteful number, since it uses less digits than its factorization.

51559823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120817.

The product of its digits is 54000, while the sum is 38.

The square root of 51559823 is about 7180.5169033991. The cubic root of 51559823 is about 372.1949468624.

The spelling of 51559823 in words is "fifty-one million, five hundred fifty-nine thousand, eight hundred twenty-three".