51350152521 has 16 divisors (see below), whose sum is σ = 71450515584. Its totient is φ = 32741896704.

The previous prime is 51350152517. The next prime is 51350152547. The reversal of 51350152521 is 12525105315.

It is not a de Polignac number, because 51350152521 - 2² = 51350152517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51350152501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 851065 + ... + 909401.

It is an arithmetic number, because the mean of its divisors is an integer number (4465657224).

Almost surely, 2^51350152521 is an apocalyptic number.

It is an amenable number.

51350152521 is a deficient number, since it is larger than the sum of its proper divisors (20100363063).

51350152521 is a wasteful number, since it uses less digits than its factorization.

51350152521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71120.

The product of its (nonzero) digits is 7500, while the sum is 30.

Adding to 51350152521 its reverse (12525105315), we get a palindrome (63875257836).

The spelling of 51350152521 in words is "fifty-one billion, three hundred fifty million, one hundred fifty-two thousand, five hundred twenty-one".