51279361 has 16 divisors (see below), whose sum is σ = 62913024. Its totient is φ = 40794624.

The previous prime is 51279353. The next prime is 51279367. The reversal of 51279361 is 16397215.

It is a cyclic number.

It is not a de Polignac number, because 51279361 - 2³ = 51279353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51279367) 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 15 ways as a sum of consecutive naturals, for example, 5736 + ... + 11638.

It is an arithmetic number, because the mean of its divisors is an integer number (3932064).

Almost surely, 2^51279361 is an apocalyptic number.

It is an amenable number.

51279361 is a deficient number, since it is larger than the sum of its proper divisors (11633663).

51279361 is a wasteful number, since it uses less digits than its factorization.

51279361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000.

The product of its digits is 11340, while the sum is 34.

The square root of 51279361 is about 7160.9608992090. The cubic root of 51279361 is about 371.5188624040.

The spelling of 51279361 in words is "fifty-one million, two hundred seventy-nine thousand, three hundred sixty-one".