51424131 has 8 divisors (see below), whose sum is σ = 74798784. Its totient is φ = 31166120.

The previous prime is 51424123. The next prime is 51424141. The reversal of 51424131 is 13142415.

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 51424131 - 2³ = 51424123 is a prime.

It is a super-2 number, since 2×51424131² = 5288882498210322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51424098 and 51424107.

It is not an unprimeable number, because it can be changed into a prime (51424141) 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, 779121 + ... + 779186.

It is an arithmetic number, because the mean of its divisors is an integer number (9349848).

Almost surely, 2^51424131 is an apocalyptic number.

51424131 is a deficient number, since it is larger than the sum of its proper divisors (23374653).

51424131 is a wasteful number, since it uses less digits than its factorization.

51424131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558321.

The product of its digits is 480, while the sum is 21.

The square root of 51424131 is about 7171.0620552328. The cubic root of 51424131 is about 371.8681533565.

Adding to 51424131 its reverse (13142415), we get a palindrome (64566546).

The spelling of 51424131 in words is "fifty-one million, four hundred twenty-four thousand, one hundred thirty-one".