228936725 has 12 divisors (see below), whose sum is σ = 284072964. Its totient is φ = 183025920.

The previous prime is 228936703. The next prime is 228936751. The reversal of 228936725 is 527639822.

It can be written as a sum of positive squares in 6 ways, for example, as 31787044 + 197149681 = 5638^2 + 14041^2 .

It is not a de Polignac number, because 228936725 - 2¹⁶ = 228871189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 60077 + ... + 63773.

It is an arithmetic number, because the mean of its divisors is an integer number (23672747).

Almost surely, 2^228936725 is an apocalyptic number.

228936725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228936725 is a deficient number, since it is larger than the sum of its proper divisors (55136239).

228936725 is a wasteful number, since it uses less digits than its factorization.

With its successor (228936726) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (6179).

With its successor (228936726) it forms an eRAP, since the sums of their prime factors are consecutive (6184 and 6185).

228936725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6184 (or 6179 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 228936725 is about 15130.6551411365. The cubic root of 228936725 is about 611.7469629392.

The spelling of 228936725 in words is "two hundred twenty-eight million, nine hundred thirty-six thousand, seven hundred twenty-five".