55533776313 has 4 divisors (see below), whose sum is σ = 74045035088. Its totient is φ = 37022517540.

The previous prime is 55533776239. The next prime is 55533776317. The reversal of 55533776313 is 31367733555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55533776313 - 2²⁶ = 55466667449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55533776317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9255629383 + ... + 9255629388.

It is an arithmetic number, because the mean of its divisors is an integer number (18511258772).

Almost surely, 2^55533776313 is an apocalyptic number.

It is an amenable number.

55533776313 is a deficient number, since it is larger than the sum of its proper divisors (18511258775).

55533776313 is a wasteful number, since it uses less digits than its factorization.

55533776313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18511258774.

The product of its digits is 2976750, while the sum is 48.

The spelling of 55533776313 in words is "fifty-five billion, five hundred thirty-three million, seven hundred seventy-six thousand, three hundred thirteen".