51169573 has 12 divisors (see below), whose sum is σ = 64103340. Its totient is φ = 40485312.

The previous prime is 51169567. The next prime is 51169607. The reversal of 51169573 is 37596115.

It can be written as a sum of positive squares in 2 ways, for example, as 24770529 + 26399044 = 4977^2 + 5138^2 .

It is not a de Polignac number, because 51169573 - 2¹⁷ = 51038501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51169523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39528 + ... + 40801.

It is an arithmetic number, because the mean of its divisors is an integer number (5341945).

Almost surely, 2^51169573 is an apocalyptic number.

It is an amenable number.

51169573 is a deficient number, since it is larger than the sum of its proper divisors (12933767).

51169573 is a wasteful number, since it uses less digits than its factorization.

51169573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80356 (or 80349 counting only the distinct ones).

The product of its digits is 28350, while the sum is 37.

The square root of 51169573 is about 7153.2910607636. The cubic root of 51169573 is about 371.2535350176.

The spelling of 51169573 in words is "fifty-one million, one hundred sixty-nine thousand, five hundred seventy-three".