228971234925 has 72 divisors (see below), whose sum is σ = 425460882600. Its totient is φ = 117571829760.

The previous prime is 228971234923. The next prime is 228971234953. The reversal of 228971234925 is 529432179822.

228971234925 is a `hidden beast` number, since 2 + 2 + 89 + 71 + 2 + 3 + 492 + 5 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 50633100324 + 178338134601 = 225018^2 + 422301^2 .

It is not a de Polignac number, because 228971234925 - 2¹ = 228971234923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228971234923) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2253621 + ... + 2353029.

It is an arithmetic number, because the mean of its divisors is an integer number (5909178925).

Almost surely, 2^228971234925 is an apocalyptic number.

228971234925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228971234925 is a deficient number, since it is larger than the sum of its proper divisors (196489647675).

228971234925 is a wasteful number, since it uses less digits than its factorization.

228971234925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99807 (or 99799 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 228971234925 in words is "two hundred twenty-eight billion, nine hundred seventy-one million, two hundred thirty-four thousand, nine hundred twenty-five".