51530331202 has 16 divisors (see below), whose sum is σ = 88347272832. Its totient is φ = 22082037120.

The previous prime is 51530331187. The next prime is 51530331221. The reversal of 51530331202 is 20213303515.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61999 + ... + 326962.

It is an arithmetic number, because the mean of its divisors is an integer number (5521704552).

Almost surely, 2^51530331202 is an apocalyptic number.

51530331202 is a deficient number, since it is larger than the sum of its proper divisors (36816941630).

51530331202 is a wasteful number, since it uses less digits than its factorization.

51530331202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398433.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 51530331202 its reverse (20213303515), we get a palindrome (71743634717).

The spelling of 51530331202 in words is "fifty-one billion, five hundred thirty million, three hundred thirty-one thousand, two hundred two".