228006925 has 6 divisors (see below), whose sum is σ = 282728618. Its totient is φ = 182405520.

The previous prime is 228006923. The next prime is 228006943. The reversal of 228006925 is 529600822.

228006925 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 3 ways, for example, as 6056521 + 221950404 = 2461^2 + 14898^2 .

It is not a de Polignac number, because 228006925 - 2¹ = 228006923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228006923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4560114 + ... + 4560163.

Almost surely, 2^228006925 is an apocalyptic number.

228006925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228006925 is a deficient number, since it is larger than the sum of its proper divisors (54721693).

228006925 is an equidigital number, since it uses as much as digits as its factorization.

228006925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9120287 (or 9120282 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 228006925 is about 15099.8981784646. The cubic root of 228006925 is about 610.9176593984.

The spelling of 228006925 in words is "two hundred twenty-eight million, six thousand, nine hundred twenty-five".