553170056561 has 2 divisors, whose sum is σ = 553170056562. Its totient is φ = 553170056560.

The previous prime is 553170056531. The next prime is 553170056597. The reversal of 553170056561 is 165650071355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 519885702961 + 33284353600 = 721031^2 + 182440^2 .

It is a cyclic number.

It is not a de Polignac number, because 553170056561 - 2²⁶ = 553102947697 is a prime.

It is a super-2 number, since 2×553170056561² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (553170056531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276585028280 + 276585028281.

It is an arithmetic number, because the mean of its divisors is an integer number (276585028281).

Almost surely, 2^553170056561 is an apocalyptic number.

It is an amenable number.

553170056561 is a deficient number, since it is larger than the sum of its proper divisors (1).

553170056561 is an equidigital number, since it uses as much as digits as its factorization.

553170056561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 472500, while the sum is 44.

The spelling of 553170056561 in words is "five hundred fifty-three billion, one hundred seventy million, fifty-six thousand, five hundred sixty-one".