51279368 has 16 divisors (see below), whose sum is σ = 109884480. Its totient is φ = 21976848.

The previous prime is 51279367. The next prime is 51279379. The reversal of 51279368 is 86397215.

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 3 ways as a sum of consecutive naturals, for example, 457796 + ... + 457907.

It is an arithmetic number, because the mean of its divisors is an integer number (6867780).

Almost surely, 2^51279368 is an apocalyptic number.

It is an amenable number.

51279368 is an abundant number, since it is smaller than the sum of its proper divisors (58605112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51279368 is a wasteful number, since it uses less digits than its factorization.

51279368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915716 (or 915712 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 51279368 is about 7160.9613879702. The cubic root of 51279368 is about 371.5188793090.

The spelling of 51279368 in words is "fifty-one million, two hundred seventy-nine thousand, three hundred sixty-eight".