51463 has 4 divisors (see below), whose sum is σ = 52488. Its totient is φ = 50440.

The previous prime is 51461. The next prime is 51473. The reversal of 51463 is 36415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36415 = 5 ⋅7283.

It is a cyclic number.

It is not a de Polignac number, because 51463 - 2¹ = 51461 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 51463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433 + ... + 538.

It is an arithmetic number, because the mean of its divisors is an integer number (13122).

2⁵¹⁴⁶³ is an apocalyptic number.

51463 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

51463 is a deficient number, since it is larger than the sum of its proper divisors (1025).

51463 is an equidigital number, since it uses as much as digits as its factorization.

51463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024.

The product of its digits is 360, while the sum is 19.

The square root of 51463 is about 226.8545789708. The cubic root of 51463 is about 37.1961822112.

Adding to 51463 its reverse (36415), we get a palindrome (87878).

The spelling of 51463 in words is "fifty-one thousand, four hundred sixty-three".