555261949162507 has 2 divisors, whose sum is σ = 555261949162508. Its totient is φ = 555261949162506.

The previous prime is 555261949162399. The next prime is 555261949162567. The reversal of 555261949162507 is 705261949162555.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 555261949162507 - 2³⁵ = 555227589424139 is a prime.

It is not a weakly prime, because it can be changed into another prime (555261949162567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277630974581253 + 277630974581254.

It is an arithmetic number, because the mean of its divisors is an integer number (277630974581254).

Almost surely, 2^{555261949162507} is an apocalyptic number.

555261949162507 is a deficient number, since it is larger than the sum of its proper divisors (1).

555261949162507 is an equidigital number, since it uses as much as digits as its factorization.

555261949162507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120000, while the sum is 67.

The spelling of 555261949162507 in words is "five hundred fifty-five trillion, two hundred sixty-one billion, nine hundred forty-nine million, one hundred sixty-two thousand, five hundred seven".