225781301 has 8 divisors (see below), whose sum is σ = 244894104. Its totient is φ = 207316480.

The previous prime is 225781273. The next prime is 225781319. The reversal of 225781301 is 103187522.

It can be written as a sum of positive squares in 4 ways, for example, as 10719076 + 215062225 = 3274^2 + 14665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225781301 - 2¹⁰ = 225780277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225781201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161270 + ... + 162663.

It is an arithmetic number, because the mean of its divisors is an integer number (30611763).

Almost surely, 2^225781301 is an apocalyptic number.

It is an amenable number.

225781301 is a deficient number, since it is larger than the sum of its proper divisors (19112803).

225781301 is a wasteful number, since it uses less digits than its factorization.

225781301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323991.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 225781301 is about 15026.0207972703. The cubic root of 225781301 is about 608.9233907712.

The spelling of 225781301 in words is "two hundred twenty-five million, seven hundred eighty-one thousand, three hundred one".