55166560 has 24 divisors (see below), whose sum is σ = 130331376. Its totient is φ = 22066560.

The previous prime is 55166543. The next prime is 55166567. The reversal of 55166560 is 6566155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55166567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172236 + ... + 172555.

It is an arithmetic number, because the mean of its divisors is an integer number (5430474).

Almost surely, 2^55166560 is an apocalyptic number.

It is an amenable number.

55166560 is an abundant number, since it is smaller than the sum of its proper divisors (75164816).

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

55166560 is a wasteful number, since it uses less digits than its factorization.

55166560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344806 (or 344798 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 55166560 is about 7427.4194711219. The cubic root of 55166560 is about 380.6787499713.

The spelling of 55166560 in words is "fifty-five million, one hundred sixty-six thousand, five hundred sixty".