225479774 has 16 divisors (see below), whose sum is σ = 371988288. Its totient is φ = 101852832.

The previous prime is 225479767. The next prime is 225479791. The reversal of 225479774 is 477974522.

It is a happy number.

225479774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×225479774² = 101682256966182152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

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, 91037 + ... + 93480.

It is an arithmetic number, because the mean of its divisors is an integer number (23249268).

Almost surely, 2^225479774 is an apocalyptic number.

225479774 is a deficient number, since it is larger than the sum of its proper divisors (146508514).

225479774 is a wasteful number, since it uses less digits than its factorization.

225479774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184579.

The product of its digits is 987840, while the sum is 47.

The square root of 225479774 is about 15015.9839504443. The cubic root of 225479774 is about 608.6522011470.

It can be divided in two parts, 2254 and 79774, that added together give a palindrome (82028).

The spelling of 225479774 in words is "two hundred twenty-five million, four hundred seventy-nine thousand, seven hundred seventy-four".