135553250513 has 2 divisors, whose sum is σ = 135553250514. Its totient is φ = 135553250512.

The previous prime is 135553250507. The next prime is 135553250561. The reversal of 135553250513 is 315052355531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105058312129 + 30494938384 = 324127^2 + 174628^2 .

It is a cyclic number.

It is not a de Polignac number, because 135553250513 - 2¹⁸ = 135552988369 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (135553250713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67776625256 + 67776625257.

It is an arithmetic number, because the mean of its divisors is an integer number (67776625257).

Almost surely, 2^135553250513 is an apocalyptic number.

It is an amenable number.

135553250513 is a deficient number, since it is larger than the sum of its proper divisors (1).

135553250513 is an equidigital number, since it uses as much as digits as its factorization.

135553250513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168750, while the sum is 38.

The spelling of 135553250513 in words is "one hundred thirty-five billion, five hundred fifty-three million, two hundred fifty thousand, five hundred thirteen".