51432623 has 12 divisors (see below), whose sum is σ = 58994544. Its totient is φ = 44721600.

The previous prime is 51432581. The next prime is 51432629. The reversal of 51432623 is 32623415.

51432623 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 51432623 - 2⁶ = 51432559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51432592 and 51432601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51432629) 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 11 ways as a sum of consecutive naturals, for example, 6458 + ... + 12023.

It is an arithmetic number, because the mean of its divisors is an integer number (4916212).

Almost surely, 2^51432623 is an apocalyptic number.

51432623 is a deficient number, since it is larger than the sum of its proper divisors (7561921).

51432623 is a wasteful number, since it uses less digits than its factorization.

51432623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18526 (or 18515 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 51432623 is about 7171.6541327646. The cubic root of 51432623 is about 371.8886218959. Note that the first 3 decimals are identical.

The spelling of 51432623 in words is "fifty-one million, four hundred thirty-two thousand, six hundred twenty-three".