51424406 has 16 divisors (see below), whose sum is σ = 84300480. Its totient is φ = 23332680.

The previous prime is 51424397. The next prime is 51424411. The reversal of 51424406 is 60442415.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 12725 + ... + 16271.

It is an arithmetic number, because the mean of its divisors is an integer number (5268780).

Almost surely, 2^51424406 is an apocalyptic number.

51424406 is a deficient number, since it is larger than the sum of its proper divisors (32876074).

51424406 is a wasteful number, since it uses less digits than its factorization.

51424406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4219.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 51424406 is about 7171.0812294939. The cubic root of 51424406 is about 371.8688162331.

Subtracting 51424406 from its reverse (60442415), we obtain a square (9018009 = 3003²).

The spelling of 51424406 in words is "fifty-one million, four hundred twenty-four thousand, four hundred six".