51516326 has 4 divisors (see below), whose sum is σ = 77274492. Its totient is φ = 25758162.

The previous prime is 51516317. The next prime is 51516331. The reversal of 51516326 is 62361515.

It is a semiprime because it is the product of two primes.

It is a pancake number, because a pancake can be divided into 51516326 parts by 10150 straight cuts.

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 as a sum of consecutive naturals, namely, 12879080 + ... + 12879083.

It is an arithmetic number, because the mean of its divisors is an integer number (19318623).

Almost surely, 2^51516326 is an apocalyptic number.

51516326 is a deficient number, since it is larger than the sum of its proper divisors (25758166).

51516326 is a wasteful number, since it uses less digits than its factorization.

51516326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25758165.

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

The square root of 51516326 is about 7177.4874433885. The cubic root of 51516326 is about 372.0902534702.

The spelling of 51516326 in words is "fifty-one million, five hundred sixteen thousand, three hundred twenty-six".