51408572 has 6 divisors (see below), whose sum is σ = 89965008. Its totient is φ = 25704284.

The previous prime is 51408563. The next prime is 51408583. The reversal of 51408572 is 27580415.

51408572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6426068 + ... + 6426075.

It is an arithmetic number, because the mean of its divisors is an integer number (14994168).

Almost surely, 2^51408572 is an apocalyptic number.

It is an amenable number.

51408572 is a deficient number, since it is larger than the sum of its proper divisors (38556436).

51408572 is a wasteful number, since it uses less digits than its factorization.

51408572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12852147 (or 12852145 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 51408572 is about 7169.9771268812. The cubic root of 51408572 is about 371.8306451536.

Adding to 51408572 its reverse (27580415), we get a palindrome (78988987).

The spelling of 51408572 in words is "fifty-one million, four hundred eight thousand, five hundred seventy-two".