228637625 has 16 divisors (see below), whose sum is σ = 287414400. Its totient is φ = 181580400.

The previous prime is 228637589. The next prime is 228637627. The reversal of 228637625 is 526736822.

It is not a de Polignac number, because 228637625 - 2¹⁴ = 228621241 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228637627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10796 + ... + 23954.

It is an arithmetic number, because the mean of its divisors is an integer number (17963400).

Almost surely, 2^228637625 is an apocalyptic number.

228637625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228637625 is a deficient number, since it is larger than the sum of its proper divisors (58776775).

228637625 is a wasteful number, since it uses less digits than its factorization.

228637625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13313 (or 13303 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 228637625 is about 15120.7680029819. The cubic root of 228637625 is about 611.4804362269.

The spelling of 228637625 in words is "two hundred twenty-eight million, six hundred thirty-seven thousand, six hundred twenty-five".