51061873 has 4 divisors (see below), whose sum is σ = 53749360. Its totient is φ = 48374388.

The previous prime is 51061859. The next prime is 51061883. The reversal of 51061873 is 37816015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51061873 - 2¹⁷ = 50930801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51061823) 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 3 ways as a sum of consecutive naturals, for example, 1343715 + ... + 1343752.

It is an arithmetic number, because the mean of its divisors is an integer number (13437340).

Almost surely, 2^51061873 is an apocalyptic number.

It is an amenable number.

51061873 is a deficient number, since it is larger than the sum of its proper divisors (2687487).

51061873 is a wasteful number, since it uses less digits than its factorization.

51061873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687486.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 51061873 is about 7145.7590919370. The cubic root of 51061873 is about 370.9928847355.

Adding to 51061873 its reverse (37816015), we get a palindrome (88877888).

The spelling of 51061873 in words is "fifty-one million, sixty-one thousand, eight hundred seventy-three".