51913419 has 8 divisors (see below), whose sum is σ = 69355920. Its totient is φ = 34539936.

The previous prime is 51913417. The next prime is 51913441. The reversal of 51913419 is 91431915.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51913419 - 2¹ = 51913417 is a prime.

It is a super-2 number, since 2×51913419² = 5390006144539122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51913419.

It is not an unprimeable number, because it can be changed into a prime (51913417) 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, 15472 + ... + 18525.

It is an arithmetic number, because the mean of its divisors is an integer number (8669490).

Almost surely, 2^51913419 is an apocalyptic number.

51913419 is a deficient number, since it is larger than the sum of its proper divisors (17442501).

51913419 is a wasteful number, since it uses less digits than its factorization.

51913419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34509.

The product of its digits is 4860, while the sum is 33.

The square root of 51913419 is about 7205.0967377267. The cubic root of 51913419 is about 373.0438438401.

The spelling of 51913419 in words is "fifty-one million, nine hundred thirteen thousand, four hundred nineteen".