51560228 has 12 divisors (see below), whose sum is σ = 90753180. Its totient is φ = 25630752.

The previous prime is 51560221. The next prime is 51560233. The reversal of 51560228 is 82206515.

51560228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 29073664 + 22486564 = 5392^2 + 4742^2 .

It is a super-2 number, since 2×51560228² = 5316914222823968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51560228.

It is not an unprimeable number, because it can be changed into a prime (51560221) 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 3 ways as a sum of consecutive naturals, for example, 36563 + ... + 37946.

It is an arithmetic number, because the mean of its divisors is an integer number (7562765).

Almost surely, 2^51560228 is an apocalyptic number.

It is an amenable number.

51560228 is a deficient number, since it is larger than the sum of its proper divisors (39192952).

51560228 is a wasteful number, since it uses less digits than its factorization.

51560228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74686 (or 74684 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 51560228 is about 7180.5451046561. The cubic root of 51560228 is about 372.1959213845.

The spelling of 51560228 in words is "fifty-one million, five hundred sixty thousand, two hundred twenty-eight".