51527273 has 24 divisors (see below), whose sum is σ = 62406792. Its totient is φ = 42384384.

The previous prime is 51527257. The next prime is 51527279. The reversal of 51527273 is 37272515.

51527273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 30118144 + 21409129 = 5488^2 + 4627^2 .

It is not a de Polignac number, because 51527273 - 2⁴ = 51527257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51527279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175715 + ... + 176007.

It is an arithmetic number, because the mean of its divisors is an integer number (2600283).

Almost surely, 2^51527273 is an apocalyptic number.

It is an amenable number.

51527273 is a deficient number, since it is larger than the sum of its proper divisors (10879519).

51527273 is a wasteful number, since it uses less digits than its factorization.

51527273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441 (or 434 counting only the distinct ones).

The product of its digits is 14700, while the sum is 32.

The square root of 51527273 is about 7178.2499956466. The cubic root of 51527273 is about 372.1166074687.

Adding to 51527273 its reverse (37272515), we get a palindrome (88799788).

The spelling of 51527273 in words is "fifty-one million, five hundred twenty-seven thousand, two hundred seventy-three".