255136067429 has 2 divisors, whose sum is σ = 255136067430. Its totient is φ = 255136067428.

The previous prime is 255136067423. The next prime is 255136067437. The reversal of 255136067429 is 924760631552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255098735329 + 37332100 = 505073^2 + 6110^2 .

It is a cyclic number.

It is not a de Polignac number, because 255136067429 - 2¹⁶ = 255136001893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255136067423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127568033714 + 127568033715.

It is an arithmetic number, because the mean of its divisors is an integer number (127568033715).

Almost surely, 2^255136067429 is an apocalyptic number.

It is an amenable number.

255136067429 is a deficient number, since it is larger than the sum of its proper divisors (1).

255136067429 is an equidigital number, since it uses as much as digits as its factorization.

255136067429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 255136067429 in words is "two hundred fifty-five billion, one hundred thirty-six million, sixty-seven thousand, four hundred twenty-nine".