225025450 has 96 divisors (see below), whose sum is σ = 471594816. Its totient is φ = 79349760.

The previous prime is 225025441. The next prime is 225025459. The reversal of 225025450 is 54520522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (225025441) and next prime (225025459).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (225025459) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2319802 + ... + 2319898.

It is an arithmetic number, because the mean of its divisors is an integer number (4912446).

Almost surely, 2^225025450 is an apocalyptic number.

225025450 is an abundant number, since it is smaller than the sum of its proper divisors (246569366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225025450 is a wasteful number, since it uses less digits than its factorization.

225025450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 225025450 is about 15000.8483093457. The cubic root of 225025450 is about 608.2431308470.

Adding to 225025450 its reverse (54520522), we get a palindrome (279545972).

The spelling of 225025450 in words is "two hundred twenty-five million, twenty-five thousand, four hundred fifty".