225378516 has 24 divisors (see below), whose sum is σ = 573691104. Its totient is φ = 68296480.

The previous prime is 225378511. The next prime is 225378611. The reversal of 225378516 is 615873522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225378511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853575 + ... + 853838.

It is an arithmetic number, because the mean of its divisors is an integer number (23903796).

Almost surely, 2^225378516 is an apocalyptic number.

It is an amenable number.

225378516 is an abundant number, since it is smaller than the sum of its proper divisors (348312588).

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

225378516 is a wasteful number, since it uses less digits than its factorization.

225378516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707431 (or 1707429 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 225378516 is about 15012.6118980010. The cubic root of 225378516 is about 608.5610767392.

The spelling of 225378516 in words is "two hundred twenty-five million, three hundred seventy-eight thousand, five hundred sixteen".