56228945 has 8 divisors (see below), whose sum is σ = 71443944. Its totient is φ = 42337024.

The previous prime is 56228933. The next prime is 56228957. The reversal of 56228945 is 54982265.

It is an interprime number because it is at equal distance from previous prime (56228933) and next prime (56228957).

It can be written as a sum of positive squares in 4 ways, for example, as 24880144 + 31348801 = 4988^2 + 5599^2 .

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 56228945 - 2⁶ = 56228881 is a prime.

It is a super-3 number, since 3×56228945³ (a number of 24 digits) contains 333 as substring.

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, 330674 + ... + 330843.

It is an arithmetic number, because the mean of its divisors is an integer number (8930493).

Almost surely, 2^56228945 is an apocalyptic number.

It is an amenable number.

56228945 is a deficient number, since it is larger than the sum of its proper divisors (15214999).

56228945 is a wasteful number, since it uses less digits than its factorization.

56228945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661539.

The product of its digits is 172800, while the sum is 41.

The square root of 56228945 is about 7498.5962019567. The cubic root of 56228945 is about 383.1069038749.

The spelling of 56228945 in words is "fifty-six million, two hundred twenty-eight thousand, nine hundred forty-five".