55533510855 has 24 divisors (see below), whose sum is σ = 96264284688. Its totient is φ = 29615965056.

The previous prime is 55533510829. The next prime is 55533510881. The reversal of 55533510855 is 55801533555.

55533510855 is a `hidden beast` number, since 5 + 5 + 53 + 3 + 510 + 85 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (55533510829) and next prime (55533510881).

It is not a de Polignac number, because 55533510855 - 2³⁰ = 54459769031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55533510855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 923179 + ... + 981491.

It is an arithmetic number, because the mean of its divisors is an integer number (4011011862).

Almost surely, 2^55533510855 is an apocalyptic number.

55533510855 is a deficient number, since it is larger than the sum of its proper divisors (40730773833).

55533510855 is a wasteful number, since it uses less digits than its factorization.

55533510855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79487 (or 79484 counting only the distinct ones).

The product of its (nonzero) digits is 1125000, while the sum is 45.

The spelling of 55533510855 in words is "fifty-five billion, five hundred thirty-three million, five hundred ten thousand, eight hundred fifty-five".