228551033 has 4 divisors (see below), whose sum is σ = 230064768. Its totient is φ = 227037300.

The previous prime is 228551027. The next prime is 228551051. The reversal of 228551033 is 330155822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228551033 - 2⁴ = 228551017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 228550987 and 228551005.

It is not an unprimeable number, because it can be changed into a prime (228551093) 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, 756641 + ... + 756942.

It is an arithmetic number, because the mean of its divisors is an integer number (57516192).

Almost surely, 2^228551033 is an apocalyptic number.

It is an amenable number.

228551033 is a deficient number, since it is larger than the sum of its proper divisors (1513735).

228551033 is a wasteful number, since it uses less digits than its factorization.

228551033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513734.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 228551033 is about 15117.9043851984. The cubic root of 228551033 is about 611.4032310864.

The spelling of 228551033 in words is "two hundred twenty-eight million, five hundred fifty-one thousand, thirty-three".