51219344 has 40 divisors (see below), whose sum is σ = 112974912. Its totient is φ = 22267520.

The previous prime is 51219341. The next prime is 51219349. The reversal of 51219344 is 44391215.

It is not an unprimeable number, because it can be changed into a prime (51219341) 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 7 ways as a sum of consecutive naturals, for example, 2279 + ... + 10374.

Almost surely, 2^51219344 is an apocalyptic number.

It is an amenable number.

51219344 is an abundant number, since it is smaller than the sum of its proper divisors (61755568).

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

51219344 is a wasteful number, since it uses less digits than its factorization.

51219344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12695 (or 12689 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 51219344 is about 7156.7691034433. The cubic root of 51219344 is about 371.3738648084.

The spelling of 51219344 in words is "fifty-one million, two hundred nineteen thousand, three hundred forty-four".