228925553 has 4 divisors (see below), whose sum is σ = 242391780. Its totient is φ = 215459328.

The previous prime is 228925511. The next prime is 228925559. The reversal of 228925553 is 355529822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181494784 + 47430769 = 13472^2 + 6887^2 .

It is a cyclic number.

It is not a de Polignac number, because 228925553 - 2¹⁰ = 228924529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228925553.

It is not an unprimeable number, because it can be changed into a prime (228925559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6733088 + ... + 6733121.

It is an arithmetic number, because the mean of its divisors is an integer number (60597945).

Almost surely, 2^228925553 is an apocalyptic number.

It is an amenable number.

228925553 is a deficient number, since it is larger than the sum of its proper divisors (13466227).

228925553 is a wasteful number, since it uses less digits than its factorization.

228925553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13466226.

The product of its digits is 216000, while the sum is 41.

The square root of 228925553 is about 15130.2859523540. The cubic root of 228925553 is about 611.7370117933.

The spelling of 228925553 in words is "two hundred twenty-eight million, nine hundred twenty-five thousand, five hundred fifty-three".