135455056503 has 32 divisors (see below), whose sum is σ = 197705027520. Its totient is φ = 81992908800.

The previous prime is 135455056489. The next prime is 135455056537. The reversal of 135455056503 is 305650554531.

It is not a de Polignac number, because 135455056503 - 2¹² = 135455052407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135455056553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 568803 + ... + 771003.

It is an arithmetic number, because the mean of its divisors is an integer number (6178282110).

Almost surely, 2^135455056503 is an apocalyptic number.

135455056503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

135455056503 is a deficient number, since it is larger than the sum of its proper divisors (62249971017).

135455056503 is a wasteful number, since it uses less digits than its factorization.

135455056503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202499.

The product of its (nonzero) digits is 675000, while the sum is 42.

The spelling of 135455056503 in words is "one hundred thirty-five billion, four hundred fifty-five million, fifty-six thousand, five hundred three".