51521105234 has 8 divisors (see below), whose sum is σ = 79078905840. Its totient is φ = 25161469956.

The previous prime is 51521105213. The next prime is 51521105239. The reversal of 51521105234 is 43250112515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 51521105197 and 51521105206.

It is not an unprimeable number, because it can be changed into a prime (51521105239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299541224 + ... + 299541395.

It is an arithmetic number, because the mean of its divisors is an integer number (9884863230).

Almost surely, 2^51521105234 is an apocalyptic number.

51521105234 is a deficient number, since it is larger than the sum of its proper divisors (27557800606).

51521105234 is a wasteful number, since it uses less digits than its factorization.

51521105234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599082664.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 51521105234 its reverse (43250112515), we get a palindrome (94771217749).

The spelling of 51521105234 in words is "fifty-one billion, five hundred twenty-one million, one hundred five thousand, two hundred thirty-four".