228726025 has 12 divisors (see below), whose sum is σ = 309404304. Its totient is φ = 166346000.

The previous prime is 228726013. The next prime is 228726059. The reversal of 228726025 is 520627822.

It is a happy number.

It is not a de Polignac number, because 228726025 - 2⁹ = 228725513 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415591 + ... + 416140.

It is an arithmetic number, because the mean of its divisors is an integer number (25783692).

Almost surely, 2^228726025 is an apocalyptic number.

228726025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228726025 is a deficient number, since it is larger than the sum of its proper divisors (80678279).

228726025 is a wasteful number, since it uses less digits than its factorization.

228726025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831752 (or 831747 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 228726025 is about 15123.6908524341. The cubic root of 228726025 is about 611.5592332687.

The spelling of 228726025 in words is "two hundred twenty-eight million, seven hundred twenty-six thousand, twenty-five".