56055578 has 4 divisors (see below), whose sum is σ = 84083370. Its totient is φ = 28027788.

The previous prime is 56055469. The next prime is 56055583. The reversal of 56055578 is 87555065.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 55547209 + 508369 = 7453^2 + 713^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14013893 + ... + 14013896.

Almost surely, 2^56055578 is an apocalyptic number.

56055578 is a deficient number, since it is larger than the sum of its proper divisors (28027792).

56055578 is a wasteful number, since it uses less digits than its factorization.

56055578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28027791.

The product of its (nonzero) digits is 210000, while the sum is 41.

The square root of 56055578 is about 7487.0273139611. The cubic root of 56055578 is about 382.7127624316.

The spelling of 56055578 in words is "fifty-six million, fifty-five thousand, five hundred seventy-eight".