55506155510 has 24 divisors (see below), whose sum is σ = 108187740720. Its totient is φ = 20494579872.

The previous prime is 55506155503. The next prime is 55506155513. The reversal of 55506155510 is 1555160555.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55506155513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16420250 + ... + 16423629.

It is an arithmetic number, because the mean of its divisors is an integer number (4507822530).

Almost surely, 2^55506155510 is an apocalyptic number.

55506155510 is a deficient number, since it is larger than the sum of its proper divisors (52681585210).

55506155510 is a wasteful number, since it uses less digits than its factorization.

55506155510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32843912 (or 32843899 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 55506155510 in words is "fifty-five billion, five hundred six million, one hundred fifty-five thousand, five hundred ten".