55352214121 has 2 divisors, whose sum is σ = 55352214122. Its totient is φ = 55352214120.

The previous prime is 55352214091. The next prime is 55352214143. The reversal of 55352214121 is 12141225355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55337857600 + 14356521 = 235240^2 + 3789^2 .

It is a cyclic number.

It is not a de Polignac number, because 55352214121 - 2²³ = 55343825513 is a prime.

It is not a weakly prime, because it can be changed into another prime (55352214521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27676107060 + 27676107061.

It is an arithmetic number, because the mean of its divisors is an integer number (27676107061).

Almost surely, 2^55352214121 is an apocalyptic number.

It is an amenable number.

55352214121 is a deficient number, since it is larger than the sum of its proper divisors (1).

55352214121 is an equidigital number, since it uses as much as digits as its factorization.

55352214121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12000, while the sum is 31.

Adding to 55352214121 its reverse (12141225355), we get a palindrome (67493439476).

The spelling of 55352214121 in words is "fifty-five billion, three hundred fifty-two million, two hundred fourteen thousand, one hundred twenty-one".