56553555 has 16 divisors (see below), whose sum is σ = 92693664. Its totient is φ = 29425920.

The previous prime is 56553547. The next prime is 56553569. The reversal of 56553555 is 55535565.

It is not a de Polignac number, because 56553555 - 2³ = 56553547 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45364 + ... + 46593.

It is an arithmetic number, because the mean of its divisors is an integer number (5793354).

Almost surely, 2^56553555 is an apocalyptic number.

56553555 is a deficient number, since it is larger than the sum of its proper divisors (36140109).

56553555 is a wasteful number, since it uses less digits than its factorization.

56553555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92006.

The product of its digits is 281250, while the sum is 39.

The square root of 56553555 is about 7520.2097710104. The cubic root of 56553555 is about 383.8427158053.

The spelling of 56553555 in words is "fifty-six million, five hundred fifty-three thousand, five hundred fifty-five".