56770209 has 12 divisors (see below), whose sum is σ = 82066816. Its totient is φ = 37816632.

The previous prime is 56770193. The next prime is 56770223. The reversal of 56770209 is 90207765.

56770209 is a `hidden beast` number, since 567 + 70 + 20 + 9 = 666.

56770209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56770209 - 2⁴ = 56770193 is a prime.

It is a super-3 number, since 3×56770209³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (56770229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20124 + ... + 22770.

Almost surely, 2^56770209 is an apocalyptic number.

It is an amenable number.

56770209 is a deficient number, since it is larger than the sum of its proper divisors (25296607).

56770209 is a wasteful number, since it uses less digits than its factorization.

56770209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036 (or 5033 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 56770209 is about 7534.6007857086. The cubic root of 56770209 is about 384.3322523153.

The spelling of 56770209 in words is "fifty-six million, seven hundred seventy thousand, two hundred nine".