51106650 has 48 divisors (see below), whose sum is σ = 144853824. Its totient is φ = 11681280.

The previous prime is 51106639. The next prime is 51106663. The reversal of 51106650 is 5660115.

It is a super-2 number, since 2×51106650² = 5223779348445000, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51106650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23287 + ... + 25386.

It is an arithmetic number, because the mean of its divisors is an integer number (3017788).

Almost surely, 2^51106650 is an apocalyptic number.

51106650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51106650 is an abundant number, since it is smaller than the sum of its proper divisors (93747174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51106650 is a wasteful number, since it uses less digits than its factorization.

51106650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48695 (or 48690 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 51106650 is about 7148.8915224670. The cubic root of 51106650 is about 371.1012963156.

Adding to 51106650 its reverse (5660115), we get a palindrome (56766765).

The spelling of 51106650 in words is "fifty-one million, one hundred six thousand, six hundred fifty".