555104522261 has 2 divisors, whose sum is σ = 555104522262. Its totient is φ = 555104522260.

The previous prime is 555104522257. The next prime is 555104522293. The reversal of 555104522261 is 162225401555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 470143348900 + 84961173361 = 685670^2 + 291481^2 .

It is a cyclic number.

It is not a de Polignac number, because 555104522261 - 2² = 555104522257 is a prime.

It is a super-2 number, since 2×555104522261² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555104522461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277552261130 + 277552261131.

It is an arithmetic number, because the mean of its divisors is an integer number (277552261131).

Almost surely, 2^555104522261 is an apocalyptic number.

It is an amenable number.

555104522261 is a deficient number, since it is larger than the sum of its proper divisors (1).

555104522261 is an equidigital number, since it uses as much as digits as its factorization.

555104522261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 555104522261 in words is "five hundred fifty-five billion, one hundred four million, five hundred twenty-two thousand, two hundred sixty-one".