555051425011921 has 2 divisors, whose sum is σ = 555051425011922. Its totient is φ = 555051425011920.

The previous prime is 555051425011879. The next prime is 555051425012023. The reversal of 555051425011921 is 129110524150555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 415426739280400 + 139624685731521 = 20382020^2 + 11816289^2 .

It is a cyclic number.

It is not a de Polignac number, because 555051425011921 - 2⁷ = 555051425011793 is a prime.

It is a super-2 number, since 2×555051425011921² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (555051425011021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277525712505960 + 277525712505961.

It is an arithmetic number, because the mean of its divisors is an integer number (277525712505961).

Almost surely, 2^{555051425011921} is an apocalyptic number.

It is an amenable number.

555051425011921 is a deficient number, since it is larger than the sum of its proper divisors (1).

555051425011921 is an equidigital number, since it uses as much as digits as its factorization.

555051425011921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450000, while the sum is 46.

The spelling of 555051425011921 in words is "five hundred fifty-five trillion, fifty-one billion, four hundred twenty-five million, eleven thousand, nine hundred twenty-one".