1313355555 has 12 divisors (see below), whose sum is σ = 2276483040. Its totient is φ = 700456272.

The previous prime is 1313355521. The next prime is 1313355577. The reversal of 1313355555 is 5555533131.

It is not a de Polignac number, because 1313355555 - 2⁷ = 1313355427 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14592795 + ... + 14592884.

It is an arithmetic number, because the mean of its divisors is an integer number (189706920).

Almost surely, 2^1313355555 is an apocalyptic number.

1313355555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1313355555 is a deficient number, since it is larger than the sum of its proper divisors (963127485).

1313355555 is a wasteful number, since it uses less digits than its factorization.

1313355555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29185690 (or 29185687 counting only the distinct ones).

The product of its digits is 84375, while the sum is 36.

The square root of 1313355555 is about 36240.2477226633. The cubic root of 1313355555 is about 1095.1176329496.

Adding to 1313355555 its reverse (5555533131), we get a palindrome (6868888686).

The spelling of 1313355555 in words is "one billion, three hundred thirteen million, three hundred fifty-five thousand, five hundred fifty-five".