553564961 has 2 divisors, whose sum is σ = 553564962. Its totient is φ = 553564960.

The previous prime is 553564889. The next prime is 553564967. The reversal of 553564961 is 169465355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 542004961 + 11560000 = 23281^2 + 3400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-553564961 is a prime.

It is not a weakly prime, because it can be changed into another prime (553564967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276782480 + 276782481.

It is an arithmetic number, because the mean of its divisors is an integer number (276782481).

Almost surely, 2^553564961 is an apocalyptic number.

It is an amenable number.

553564961 is a deficient number, since it is larger than the sum of its proper divisors (1).

553564961 is an equidigital number, since it uses as much as digits as its factorization.

553564961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486000, while the sum is 44.

The square root of 553564961 is about 23527.9612588936. The cubic root of 553564961 is about 821.0876707640.

The spelling of 553564961 in words is "five hundred fifty-three million, five hundred sixty-four thousand, nine hundred sixty-one".