51316526 has 4 divisors (see below), whose sum is σ = 76974792. Its totient is φ = 25658262.

The previous prime is 51316487. The next prime is 51316541. The reversal of 51316526 is 62561315.

51316526 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62561315 = 5 ⋅12512263.

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, 12829130 + ... + 12829133.

It is an arithmetic number, because the mean of its divisors is an integer number (19243698).

Almost surely, 2^51316526 is an apocalyptic number.

51316526 is a deficient number, since it is larger than the sum of its proper divisors (25658266).

51316526 is a wasteful number, since it uses less digits than its factorization.

51316526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25658265.

The product of its digits is 5400, while the sum is 29.

The square root of 51316526 is about 7163.5554021729. Note that the first 3 decimals coincide. The cubic root of 51316526 is about 371.6085941786.

The spelling of 51316526 in words is "fifty-one million, three hundred sixteen thousand, five hundred twenty-six".