51162750 has 48 divisors (see below), whose sum is σ = 138350160. Its totient is φ = 13642800.

The previous prime is 51162739. The next prime is 51162751. The reversal of 51162750 is 5726115.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51162751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9120 + ... + 13619.

It is an arithmetic number, because the mean of its divisors is an integer number (2882295).

Almost surely, 2^51162750 is an apocalyptic number.

51162750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51162750 is an abundant number, since it is smaller than the sum of its proper divisors (87187410).

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

51162750 is a wasteful number, since it uses less digits than its factorization.

51162750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22762 (or 22749 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 51162750 is about 7152.8141315150. The cubic root of 51162750 is about 371.2370331831.

Adding to 51162750 its reverse (5726115), we get a palindrome (56888865).

The spelling of 51162750 in words is "fifty-one million, one hundred sixty-two thousand, seven hundred fifty".