225511549 has 8 divisors (see below), whose sum is σ = 229312512. Its totient is φ = 221728080.

The previous prime is 225511547. The next prime is 225511553. The reversal of 225511549 is 945115522.

225511549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225511549 - 2¹ = 225511547 is a prime.

It is a super-3 number, since 3×225511549³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225511541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23047 + ... + 31339.

It is an arithmetic number, because the mean of its divisors is an integer number (28664064).

Almost surely, 2^225511549 is an apocalyptic number.

It is an amenable number.

225511549 is a deficient number, since it is larger than the sum of its proper divisors (3800963).

225511549 is an equidigital number, since it uses as much as digits as its factorization.

225511549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8747.

The product of its digits is 18000, while the sum is 34.

The square root of 225511549 is about 15017.0419523953. The cubic root of 225511549 is about 608.6807905779.

The spelling of 225511549 in words is "two hundred twenty-five million, five hundred eleven thousand, five hundred forty-nine".