225131055 has 16 divisors (see below), whose sum is σ = 365587584. Its totient is φ = 118277280.

The previous prime is 225131033. The next prime is 225131059. The reversal of 225131055 is 550131522.

It is a happy number.

It is not a de Polignac number, because 225131055 - 2⁶ = 225130991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225131059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111001 + ... + 113010.

It is an arithmetic number, because the mean of its divisors is an integer number (22849224).

Almost surely, 2^225131055 is an apocalyptic number.

225131055 is a deficient number, since it is larger than the sum of its proper divisors (140456529).

225131055 is a wasteful number, since it uses less digits than its factorization.

225131055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224086.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 225131055 is about 15004.3678640588. The cubic root of 225131055 is about 608.3382659678.

Adding to 225131055 its reverse (550131522), we get a palindrome (775262577).

The spelling of 225131055 in words is "two hundred twenty-five million, one hundred thirty-one thousand, fifty-five".