56105550 has 36 divisors (see below), whose sum is σ = 150738120. Its totient is φ = 14961360.

The previous prime is 56105531. The next prime is 56105551. The reversal of 56105550 is 5550165.

56105550 is a `hidden beast` number, since 5 + 6 + 105 + 550 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56105551) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 61890 + ... + 62789.

It is an arithmetic number, because the mean of its divisors is an integer number (4187170).

Almost surely, 2^56105550 is an apocalyptic number.

56105550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56105550 is an abundant number, since it is smaller than the sum of its proper divisors (94632570).

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

56105550 is a wasteful number, since it uses less digits than its factorization.

56105550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124697 (or 124689 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 56105550 is about 7490.3638095890. The cubic root of 56105550 is about 382.8264546072.

The spelling of 56105550 in words is "fifty-six million, one hundred five thousand, five hundred fifty".