228958725 has 12 divisors (see below), whose sum is σ = 378545216. Its totient is φ = 122111280.

The previous prime is 228958657. The next prime is 228958729. The reversal of 228958725 is 527859822.

It is a happy number.

It is not a de Polignac number, because 228958725 - 2²³ = 220570117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228958729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1526317 + ... + 1526466.

Almost surely, 2^228958725 is an apocalyptic number.

228958725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228958725 is a deficient number, since it is larger than the sum of its proper divisors (149586491).

228958725 is a wasteful number, since it uses less digits than its factorization.

228958725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052796 (or 3052791 counting only the distinct ones).

The product of its digits is 806400, while the sum is 48.

The square root of 228958725 is about 15131.3821245780. The cubic root of 228958725 is about 611.7665578761.

The spelling of 228958725 in words is "two hundred twenty-eight million, nine hundred fifty-eight thousand, seven hundred twenty-five".