228819525 has 96 divisors (see below), whose sum is σ = 445685760. Its totient is φ = 102432000.

The previous prime is 228819517. The next prime is 228819529. The reversal of 228819525 is 525918822.

It is not a de Polignac number, because 228819525 - 2³ = 228819517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228819529) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 588031 + ... + 588419.

It is an arithmetic number, because the mean of its divisors is an integer number (4642560).

Almost surely, 2^228819525 is an apocalyptic number.

228819525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228819525 is a deficient number, since it is larger than the sum of its proper divisors (216866235).

228819525 is a wasteful number, since it uses less digits than its factorization.

228819525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 462 counting only the distinct ones).

The product of its digits is 115200, while the sum is 42.

The square root of 228819525 is about 15126.7817132396. The cubic root of 228819525 is about 611.6425542033.

The spelling of 228819525 in words is "two hundred twenty-eight million, eight hundred nineteen thousand, five hundred twenty-five".