51521245141 has 2 divisors, whose sum is σ = 51521245142. Its totient is φ = 51521245140.

The previous prime is 51521245099. The next prime is 51521245183. The reversal of 51521245141 is 14154212515.

It is a balanced prime because it is at equal distance from previous prime (51521245099) and next prime (51521245183).

It can be written as a sum of positive squares in only one way, i.e., 42047142916 + 9474102225 = 205054^2 + 97335^2 .

It is a cyclic number.

It is not a de Polignac number, because 51521245141 - 2¹¹ = 51521243093 is a prime.

It is a super-2 number, since 2×51521245141² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51521245241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25760622570 + 25760622571.

It is an arithmetic number, because the mean of its divisors is an integer number (25760622571).

Almost surely, 2^51521245141 is an apocalyptic number.

It is an amenable number.

51521245141 is a deficient number, since it is larger than the sum of its proper divisors (1).

51521245141 is an equidigital number, since it uses as much as digits as its factorization.

51521245141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8000, while the sum is 31.

Adding to 51521245141 its reverse (14154212515), we get a palindrome (65675457656).

The spelling of 51521245141 in words is "fifty-one billion, five hundred twenty-one million, two hundred forty-five thousand, one hundred forty-one".