51519429 has 32 divisors (see below), whose sum is σ = 84439040. Its totient is φ = 30839616.

The previous prime is 51519421. The next prime is 51519439. The reversal of 51519429 is 92491515.

51519429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51519429 - 2³ = 51519421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51519393 and 51519402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51519421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11004 + ... + 14970.

It is an arithmetic number, because the mean of its divisors is an integer number (2638720).

Almost surely, 2^51519429 is an apocalyptic number.

It is an amenable number.

51519429 is a deficient number, since it is larger than the sum of its proper divisors (32919611).

51519429 is a wasteful number, since it uses less digits than its factorization.

51519429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026 (or 4020 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 51519429 is about 7177.7036021279. The cubic root of 51519429 is about 372.0977240656.

The spelling of 51519429 in words is "fifty-one million, five hundred nineteen thousand, four hundred twenty-nine".