225347620 has 12 divisors (see below), whose sum is σ = 473230044. Its totient is φ = 90139040.

The previous prime is 225347567. The next prime is 225347621. The reversal of 225347620 is 26743522.

It can be written as a sum of positive squares in 2 ways, for example, as 132572196 + 92775424 = 11514^2 + 9632^2 .

It is not an unprimeable number, because it can be changed into a prime (225347621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5633671 + ... + 5633710.

It is an arithmetic number, because the mean of its divisors is an integer number (39435837).

Almost surely, 2^225347620 is an apocalyptic number.

225347620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225347620 is an abundant number, since it is smaller than the sum of its proper divisors (247882424).

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

225347620 is a wasteful number, since it uses less digits than its factorization.

225347620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11267390 (or 11267388 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 225347620 is about 15011.5828612442. The cubic root of 225347620 is about 608.5332672825.

The spelling of 225347620 in words is "two hundred twenty-five million, three hundred forty-seven thousand, six hundred twenty".