225197826 has 48 divisors (see below), whose sum is σ = 540852480. Its totient is φ = 62264160.

The previous prime is 225197803. The next prime is 225197831. The reversal of 225197826 is 628791522.

225197826 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3241 + ... + 21468.

It is an arithmetic number, because the mean of its divisors is an integer number (11267760).

Almost surely, 2^225197826 is an apocalyptic number.

225197826 is an abundant number, since it is smaller than the sum of its proper divisors (315654654).

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

225197826 is a wasteful number, since it uses less digits than its factorization.

225197826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24759 (or 24752 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 225197826 is about 15006.5927511877. The cubic root of 225197826 is about 608.3984018137.

The spelling of 225197826 in words is "two hundred twenty-five million, one hundred ninety-seven thousand, eight hundred twenty-six".