225378822 has 16 divisors (see below), whose sum is σ = 450994752. Its totient is φ = 75086760.

The previous prime is 225378799. The next prime is 225378859. The reversal of 225378822 is 228873522.

225378822 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×225378822² = 101591226812215368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3973 + ... + 21599.

It is an arithmetic number, because the mean of its divisors is an integer number (28187172).

Almost surely, 2^225378822 is an apocalyptic number.

225378822 is an abundant number, since it is smaller than the sum of its proper divisors (225615930).

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

225378822 is a wasteful number, since it uses less digits than its factorization.

225378822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19763.

The product of its digits is 107520, while the sum is 39.

The square root of 225378822 is about 15012.6220894286. The cubic root of 225378822 is about 608.5613521568.

The spelling of 225378822 in words is "two hundred twenty-five million, three hundred seventy-eight thousand, eight hundred twenty-two".