51235424 has 12 divisors (see below), whose sum is σ = 100869804. Its totient is φ = 25617696.

The previous prime is 51235411. The next prime is 51235427. The reversal of 51235424 is 42453215.

It is a happy number.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51235393 and 51235402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51235427) 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 as a sum of consecutive naturals, namely, 800522 + ... + 800585.

It is an arithmetic number, because the mean of its divisors is an integer number (8405817).

Almost surely, 2^51235424 is an apocalyptic number.

It is an amenable number.

51235424 is a deficient number, since it is larger than the sum of its proper divisors (49634380).

51235424 is a wasteful number, since it uses less digits than its factorization.

51235424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601117 (or 1601109 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 51235424 is about 7157.8924272442. The cubic root of 51235424 is about 371.4127242605.

Adding to 51235424 its reverse (42453215), we get a palindrome (93688639).

The spelling of 51235424 in words is "fifty-one million, two hundred thirty-five thousand, four hundred twenty-four".