555156621053 has 2 divisors, whose sum is σ = 555156621054. Its totient is φ = 555156621052.

The previous prime is 555156621043. The next prime is 555156621067. The reversal of 555156621053 is 350126651555.

555156621053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360800844889 + 194355776164 = 600667^2 + 440858^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555156621053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 555156620995 and 555156621013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555156621043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277578310526 + 277578310527.

It is an arithmetic number, because the mean of its divisors is an integer number (277578310527).

Almost surely, 2^555156621053 is an apocalyptic number.

It is an amenable number.

555156621053 is a deficient number, since it is larger than the sum of its proper divisors (1).

555156621053 is an equidigital number, since it uses as much as digits as its factorization.

555156621053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 675000, while the sum is 44.

The spelling of 555156621053 in words is "five hundred fifty-five billion, one hundred fifty-six million, six hundred twenty-one thousand, fifty-three".