55663555535 has 16 divisors (see below), whose sum is σ = 76406260800. Its totient is φ = 38135460096.

The previous prime is 55663555531. The next prime is 55663555553. The reversal of 55663555535 is 53555536655.

It is a cyclic number.

It is not a de Polignac number, because 55663555535 - 2² = 55663555531 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55663555531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664820 + ... + 743849.

It is an arithmetic number, because the mean of its divisors is an integer number (4775391300).

Almost surely, 2^55663555535 is an apocalyptic number.

55663555535 is a deficient number, since it is larger than the sum of its proper divisors (20742705265).

55663555535 is a wasteful number, since it uses less digits than its factorization.

55663555535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409810.

The product of its digits is 25312500, while the sum is 53.

The spelling of 55663555535 in words is "fifty-five billion, six hundred sixty-three million, five hundred fifty-five thousand, five hundred thirty-five".