51473 has 2 divisors, whose sum is σ = 51474. Its totient is φ = 51472.

The previous prime is 51461. The next prime is 51479. The reversal of 51473 is 37415.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35344 + 16129 = 188^2 + 127^2 .

It is a cyclic number.

It is not a de Polignac number, because 51473 - 2⁸ = 51217 is a prime.

It is equal to p₅₂₆₇ and since 51473 and 5267 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 9 and base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 51473.

It is not a weakly prime, because it can be changed into another prime (51479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25736 + 25737.

It is an arithmetic number, because the mean of its divisors is an integer number (25737).

2⁵¹⁴⁷³ is an apocalyptic number.

It is an amenable number.

51473 is a deficient number, since it is larger than the sum of its proper divisors (1).

51473 is an equidigital number, since it uses as much as digits as its factorization.

51473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420, while the sum is 20.

The square root of 51473 is about 226.8766184515. The cubic root of 51473 is about 37.1985913060.

Adding to 51473 its reverse (37415), we get a palindrome (88888).

The spelling of 51473 in words is "fifty-one thousand, four hundred seventy-three".