56066555 has 8 divisors (see below), whose sum is σ = 68201952. Its totient is φ = 44238528.

The previous prime is 56066533. The next prime is 56066567. The reversal of 56066555 is 55566065.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56066555 - 2²² = 51872251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76439 + ... + 77168.

It is an arithmetic number, because the mean of its divisors is an integer number (8525244).

Almost surely, 2^56066555 is an apocalyptic number.

56066555 is a deficient number, since it is larger than the sum of its proper divisors (12135397).

56066555 is a wasteful number, since it uses less digits than its factorization.

56066555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153685.

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 56066555 is about 7487.7603460581. The cubic root of 56066555 is about 382.7377421865.

The spelling of 56066555 in words is "fifty-six million, sixty-six thousand, five hundred fifty-five".