55111055560 has 32 divisors (see below), whose sum is σ = 135272592000. Its totient is φ = 20040383680.

The previous prime is 55111055557. The next prime is 55111055563. The reversal of 55111055560 is 6555011155.

It is an interprime number because it is at equal distance from previous prime (55111055557) and next prime (55111055563).

It is not an unprimeable number, because it can be changed into a prime (55111055563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62625760 + ... + 62626639.

It is an arithmetic number, because the mean of its divisors is an integer number (4227268500).

Almost surely, 2^55111055560 is an apocalyptic number.

It is an amenable number.

55111055560 is an abundant number, since it is smaller than the sum of its proper divisors (80161536440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55111055560 is a wasteful number, since it uses less digits than its factorization.

55111055560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125252421 (or 125252417 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 55111055560 in words is "fifty-five billion, one hundred eleven million, fifty-five thousand, five hundred sixty".