553605749 has 2 divisors, whose sum is σ = 553605750. Its totient is φ = 553605748.

The previous prime is 553605691. The next prime is 553605761. The reversal of 553605749 is 947506355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 537405124 + 16200625 = 23182^2 + 4025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-553605749 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553605769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276802874 + 276802875.

It is an arithmetic number, because the mean of its divisors is an integer number (276802875).

Almost surely, 2^553605749 is an apocalyptic number.

It is an amenable number.

553605749 is a deficient number, since it is larger than the sum of its proper divisors (1).

553605749 is an equidigital number, since it uses as much as digits as its factorization.

553605749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567000, while the sum is 44.

The square root of 553605749 is about 23528.8280413624. The cubic root of 553605749 is about 821.1078368413.

The spelling of 553605749 in words is "five hundred fifty-three million, six hundred five thousand, seven hundred forty-nine".