55005560 has 32 divisors (see below), whose sum is σ = 125161200. Its totient is φ = 21753600.

The previous prime is 55005553. The next prime is 55005583. The reversal of 55005560 is 6550055.

55005560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55005560² = 6051223261827200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4166 + ... + 11285.

Almost surely, 2^55005560 is an apocalyptic number.

It is an amenable number.

55005560 is an abundant number, since it is smaller than the sum of its proper divisors (70155640).

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

55005560 is a wasteful number, since it uses less digits than its factorization.

55005560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15551 (or 15547 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 55005560 is about 7416.5733327461. The cubic root of 55005560 is about 380.3080604417.

The spelling of 55005560 in words is "fifty-five million, five thousand, five hundred sixty".