51560867 has 4 divisors (see below), whose sum is σ = 52434840. Its totient is φ = 50686896.

The previous prime is 51560837. The next prime is 51560879. The reversal of 51560867 is 76806515.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76806515 = 5 ⋅15361303.

It is a cyclic number.

It is not a de Polignac number, because 51560867 - 2¹⁴ = 51544483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51560867.

It is not an unprimeable number, because it can be changed into a prime (51560837) 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, 436898 + ... + 437015.

It is an arithmetic number, because the mean of its divisors is an integer number (13108710).

Almost surely, 2^51560867 is an apocalyptic number.

51560867 is a deficient number, since it is larger than the sum of its proper divisors (873973).

51560867 is an equidigital number, since it uses as much as digits as its factorization.

51560867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873972.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 51560867 is about 7180.5895997474. The cubic root of 51560867 is about 372.1974589534.

The spelling of 51560867 in words is "fifty-one million, five hundred sixty thousand, eight hundred sixty-seven".