51651082 has 32 divisors (see below), whose sum is σ = 93674880. Its totient is φ = 20865600.

The previous prime is 51651023. The next prime is 51651109. The reversal of 51651082 is 28015615.

It is a self number, because there is not a number n which added to its sum of digits gives 51651082.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73332 + ... + 74032.

It is an arithmetic number, because the mean of its divisors is an integer number (2927340).

Almost surely, 2^51651082 is an apocalyptic number.

51651082 is a deficient number, since it is larger than the sum of its proper divisors (42023798).

51651082 is a wasteful number, since it uses less digits than its factorization.

51651082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 51651082 is about 7186.8687201034. The cubic root of 51651082 is about 372.4144079127.

Adding to 51651082 its reverse (28015615), we get a palindrome (79666697).

The spelling of 51651082 in words is "fifty-one million, six hundred fifty-one thousand, eighty-two".