225205634 has 4 divisors (see below), whose sum is σ = 337808454. Its totient is φ = 112602816.

The previous prime is 225205633. The next prime is 225205649. The reversal of 225205634 is 436502522.

225205634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 191739409 + 33466225 = 13847^2 + 5785^2 .

It is a junction number, because it is equal to n+sod(n) for n = 225205597 and 225205606.

It is not an unprimeable number, because it can be changed into a prime (225205633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56301407 + ... + 56301410.

Almost surely, 2^225205634 is an apocalyptic number.

225205634 is a deficient number, since it is larger than the sum of its proper divisors (112602820).

225205634 is a wasteful number, since it uses less digits than its factorization.

225205634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112602819.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 225205634 is about 15006.8529012581. The cubic root of 225205634 is about 608.4054331424.

The spelling of 225205634 in words is "two hundred twenty-five million, two hundred five thousand, six hundred thirty-four".