555235139 has 2 divisors, whose sum is σ = 555235140. Its totient is φ = 555235138.

The previous prime is 555235129. The next prime is 555235151. The reversal of 555235139 is 931532555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 555235139 - 2¹² = 555231043 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (555235129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277617569 + 277617570.

It is an arithmetic number, because the mean of its divisors is an integer number (277617570).

Almost surely, 2^555235139 is an apocalyptic number.

555235139 is a deficient number, since it is larger than the sum of its proper divisors (1).

555235139 is an equidigital number, since it uses as much as digits as its factorization.

555235139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 101250, while the sum is 38.

The square root of 555235139 is about 23563.4279976408. The cubic root of 555235139 is about 821.9126180144.

The spelling of 555235139 in words is "five hundred fifty-five million, two hundred thirty-five thousand, one hundred thirty-nine".