135550511 has 4 divisors (see below), whose sum is σ = 135588024. Its totient is φ = 135513000.

The previous prime is 135550483. The next prime is 135550531. The reversal of 135550511 is 115055531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115055531 = 577 ⋅199403.

It is a cyclic number.

It is not a de Polignac number, because 135550511 - 2¹⁰ = 135549487 is a prime.

It is a super-2 number, since 2×135550511² = 36747882064722242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135550531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12680 + ... + 20781.

It is an arithmetic number, because the mean of its divisors is an integer number (33897006).

Almost surely, 2^135550511 is an apocalyptic number.

135550511 is a deficient number, since it is larger than the sum of its proper divisors (37513).

135550511 is an equidigital number, since it uses as much as digits as its factorization.

135550511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37512.

The product of its (nonzero) digits is 1875, while the sum is 26.

The square root of 135550511 is about 11642.6161578917. The cubic root of 135550511 is about 513.6891424332.

The spelling of 135550511 in words is "one hundred thirty-five million, five hundred fifty thousand, five hundred eleven".