225211602 has 32 divisors (see below), whose sum is σ = 561567744. Its totient is φ = 58496400.

The previous prime is 225211601. The next prime is 225211667. The reversal of 225211602 is 206112522.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (225211601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243274 + ... + 244197.

It is an arithmetic number, because the mean of its divisors is an integer number (17548992).

Almost surely, 2^225211602 is an apocalyptic number.

225211602 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

225211602 is an abundant number, since it is smaller than the sum of its proper divisors (336356142).

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

225211602 is a wasteful number, since it uses less digits than its factorization.

225211602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487494.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 225211602 is about 15007.0517424310. The cubic root of 225211602 is about 608.4108073886.

The spelling of 225211602 in words is "two hundred twenty-five million, two hundred eleven thousand, six hundred two".