555245235409 has 2 divisors, whose sum is σ = 555245235410. Its totient is φ = 555245235408.

The previous prime is 555245235403. The next prime is 555245235443. The reversal of 555245235409 is 904532542555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 485418758400 + 69826477009 = 696720^2 + 264247^2 .

It is a cyclic number.

It is not a de Polignac number, because 555245235409 - 2⁹ = 555245234897 is a prime.

It is not a weakly prime, because it can be changed into another prime (555245235403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277622617704 + 277622617705.

It is an arithmetic number, because the mean of its divisors is an integer number (277622617705).

Almost surely, 2^555245235409 is an apocalyptic number.

It is an amenable number.

555245235409 is a deficient number, since it is larger than the sum of its proper divisors (1).

555245235409 is an equidigital number, since it uses as much as digits as its factorization.

555245235409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400000, while the sum is 49.

The spelling of 555245235409 in words is "five hundred fifty-five billion, two hundred forty-five million, two hundred thirty-five thousand, four hundred nine".