51424519 has 8 divisors (see below), whose sum is σ = 52509600. Its totient is φ = 50349600.

The previous prime is 51424427. The next prime is 51424523. The reversal of 51424519 is 91542415.

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

It is a cyclic number.

It is not a de Polignac number, because 51424519 - 2⁹ = 51424007 is a prime.

It is a super-2 number, since 2×51424519² = 5288962308762722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51424019) 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, 8149 + ... + 13009.

It is an arithmetic number, because the mean of its divisors is an integer number (6563700).

Almost surely, 2^51424519 is an apocalyptic number.

51424519 is a deficient number, since it is larger than the sum of its proper divisors (1085081).

51424519 is a wasteful number, since it uses less digits than its factorization.

51424519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5081.

The product of its digits is 7200, while the sum is 31.

The square root of 51424519 is about 7171.0891083573. The cubic root of 51424519 is about 371.8690886145.

The spelling of 51424519 in words is "fifty-one million, four hundred twenty-four thousand, five hundred nineteen".