1355264563 has 4 divisors (see below), whose sum is σ = 1357461720. Its totient is φ = 1353067408.

The previous prime is 1355264549. The next prime is 1355264567. The reversal of 1355264563 is 3654625531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3654625531 = 37 ⋅98773663.

It is a cyclic number.

It is not a de Polignac number, because 1355264563 - 2⁹ = 1355264051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1355264567) 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, 1097653 + ... + 1098886.

It is an arithmetic number, because the mean of its divisors is an integer number (339365430).

Almost surely, 2^1355264563 is an apocalyptic number.

1355264563 is a deficient number, since it is larger than the sum of its proper divisors (2197157).

1355264563 is an equidigital number, since it uses as much as digits as its factorization.

1355264563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197156.

The product of its digits is 324000, while the sum is 40.

The square root of 1355264563 is about 36813.9180609725. The cubic root of 1355264563 is about 1106.6442391646.

The spelling of 1355264563 in words is "one billion, three hundred fifty-five million, two hundred sixty-four thousand, five hundred sixty-three".