228049025 has 24 divisors (see below), whose sum is σ = 296707200. Its totient is φ = 173543040.

The previous prime is 228049013. The next prime is 228049027. The reversal of 228049025 is 520940822.

It is not a de Polignac number, because 228049025 - 2⁴ = 228049009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228048982 and 228049000.

It is not an unprimeable number, because it can be changed into a prime (228049027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113429 + ... + 115421.

It is an arithmetic number, because the mean of its divisors is an integer number (12362800).

Almost surely, 2^228049025 is an apocalyptic number.

228049025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228049025 is a deficient number, since it is larger than the sum of its proper divisors (68658175).

228049025 is a wasteful number, since it uses less digits than its factorization.

228049025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225 (or 2220 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 228049025 is about 15101.2921632554. The cubic root of 228049025 is about 610.9552577457.

Adding to 228049025 its reverse (520940822), we get a palindrome (748989847).

The spelling of 228049025 in words is "two hundred twenty-eight million, forty-nine thousand, twenty-five".