51078650 has 48 divisors (see below), whose sum is σ = 114308160. Its totient is φ = 16588800.

The previous prime is 51078649. The next prime is 51078683. The reversal of 51078650 is 5687015.

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, 2810 + ... + 10490.

It is an arithmetic number, because the mean of its divisors is an integer number (2381420).

Almost surely, 2^51078650 is an apocalyptic number.

51078650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51078650 is an abundant number, since it is smaller than the sum of its proper divisors (63229510).

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

51078650 is a wasteful number, since it uses less digits than its factorization.

51078650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7719 (or 7714 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 51078650 is about 7146.9329085979. The cubic root of 51078650 is about 371.0335116959.

The spelling of 51078650 in words is "fifty-one million, seventy-eight thousand, six hundred fifty".