1355555453553 has 40 divisors (see below), whose sum is σ = 2314975585472. Its totient is φ = 774359033184.

The previous prime is 1355555453521. The next prime is 1355555453563. The reversal of 1355555453553 is 3553545555531.

1355555453553 is a `hidden beast` number, since 1 + 3 + 5 + 5 + 5 + 5 + 54 + 535 + 53 = 666.

It is not a de Polignac number, because 1355555453553 - 2⁵ = 1355555453521 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1355555453553.

It is not an unprimeable number, because it can be changed into a prime (1355555453563) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1431951 + ... + 2182107.

Almost surely, 2^{1355555453553} is an apocalyptic number.

It is an amenable number.

1355555453553 is a deficient number, since it is larger than the sum of its proper divisors (959420131919).

1355555453553 is an equidigital number, since it uses as much as digits as its factorization.

1355555453553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753363 (or 753354 counting only the distinct ones).

The product of its digits is 42187500, while the sum is 54.

The spelling of 1355555453553 in words is "one trillion, three hundred fifty-five billion, five hundred fifty-five million, four hundred fifty-three thousand, five hundred fifty-three".