51008530 has 16 divisors (see below), whose sum is σ = 93109824. Its totient is φ = 20115760.

The previous prime is 51008497. The next prime is 51008537. The reversal of 51008530 is 3580015.

It is not an unprimeable number, because it can be changed into a prime (51008537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35212 + ... + 36631.

It is an arithmetic number, because the mean of its divisors is an integer number (5819364).

Almost surely, 2^51008530 is an apocalyptic number.

51008530 is a deficient number, since it is larger than the sum of its proper divisors (42101294).

51008530 is a wasteful number, since it uses less digits than its factorization.

51008530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71921.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 51008530 is about 7142.0256230288. The cubic root of 51008530 is about 370.8636508760.

Adding to 51008530 its reverse (3580015), we get a palindrome (54588545).

The spelling of 51008530 in words is "fifty-one million, eight thousand, five hundred thirty".