51605150 has 24 divisors (see below), whose sum is σ = 96426120. Its totient is φ = 20547360.

The previous prime is 51605131. The next prime is 51605153. The reversal of 51605150 is 5150615.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51605153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9197 + ... + 13703.

It is an arithmetic number, because the mean of its divisors is an integer number (4017755).

Almost surely, 2^51605150 is an apocalyptic number.

51605150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51605150 is a deficient number, since it is larger than the sum of its proper divisors (44820970).

51605150 is a wasteful number, since it uses less digits than its factorization.

51605150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4748 (or 4743 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 51605150 is about 7183.6724591256. The cubic root of 51605150 is about 372.3039822708.

Adding to 51605150 its reverse (5150615), we get a palindrome (56755765).

The spelling of 51605150 in words is "fifty-one million, six hundred five thousand, one hundred fifty".