5511578253863 has 24 divisors (see below), whose sum is σ = 6279849732240. Its totient is φ = 4827894579200.

The previous prime is 5511578253763. The next prime is 5511578253889. The reversal of 5511578253863 is 3683528751155.

It is not a de Polignac number, because 5511578253863 - 2⁸ = 5511578253607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5511578253463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123431 + ... + 3322407.

It is an arithmetic number, because the mean of its divisors is an integer number (261660405510).

Almost surely, 2^{5511578253863} is an apocalyptic number.

5511578253863 is a deficient number, since it is larger than the sum of its proper divisors (768271478377).

5511578253863 is a wasteful number, since it uses less digits than its factorization.

5511578253863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3199519 (or 3199508 counting only the distinct ones).

The product of its digits is 30240000, while the sum is 59.

The spelling of 5511578253863 in words is "five trillion, five hundred eleven billion, five hundred seventy-eight million, two hundred fifty-three thousand, eight hundred sixty-three".