228595551 has 16 divisors (see below), whose sum is σ = 319038720. Its totient is φ = 145316160.

The previous prime is 228595537. The next prime is 228595553. The reversal of 228595551 is 155595822.

It is not a de Polignac number, because 228595551 - 2¹⁸ = 228333407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228595553) 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, 17835 + ... + 27843.

It is an arithmetic number, because the mean of its divisors is an integer number (19939920).

Almost surely, 2^228595551 is an apocalyptic number.

228595551 is a deficient number, since it is larger than the sum of its proper divisors (90443169).

228595551 is a wasteful number, since it uses less digits than its factorization.

228595551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10366.

The product of its digits is 180000, while the sum is 42.

The square root of 228595551 is about 15119.3766736595. The cubic root of 228595551 is about 611.4429256230.

The spelling of 228595551 in words is "two hundred twenty-eight million, five hundred ninety-five thousand, five hundred fifty-one".