225961012 has 6 divisors (see below), whose sum is σ = 395431778. Its totient is φ = 112980504.

The previous prime is 225961003. The next prime is 225961027. The reversal of 225961012 is 210169522.

It can be written as a sum of positive squares in only one way, i.e., 216560656 + 9400356 = 14716^2 + 3066^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28245123 + ... + 28245130.

Almost surely, 2^225961012 is an apocalyptic number.

It is an amenable number.

225961012 is a deficient number, since it is larger than the sum of its proper divisors (169470766).

225961012 is a wasteful number, since it uses less digits than its factorization.

225961012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56490257 (or 56490255 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 225961012 is about 15031.9996008515. Note that the first 3 decimals coincide. The cubic root of 225961012 is about 609.0849057861.

The spelling of 225961012 in words is "two hundred twenty-five million, nine hundred sixty-one thousand, twelve".