54251434121 has 2 divisors, whose sum is σ = 54251434122. Its totient is φ = 54251434120.

The previous prime is 54251434117. The next prime is 54251434183. The reversal of 54251434121 is 12143415245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53993028496 + 258405625 = 232364^2 + 16075^2 .

It is a cyclic number.

It is not a de Polignac number, because 54251434121 - 2² = 54251434117 is a prime.

It is not a weakly prime, because it can be changed into another prime (54251434421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27125717060 + 27125717061.

It is an arithmetic number, because the mean of its divisors is an integer number (27125717061).

Almost surely, 2^54251434121 is an apocalyptic number.

It is an amenable number.

54251434121 is a deficient number, since it is larger than the sum of its proper divisors (1).

54251434121 is an equidigital number, since it uses as much as digits as its factorization.

54251434121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19200, while the sum is 32.

Adding to 54251434121 its reverse (12143415245), we get a palindrome (66394849366).

The spelling of 54251434121 in words is "fifty-four billion, two hundred fifty-one million, four hundred thirty-four thousand, one hundred twenty-one".