225745601 has 4 divisors (see below), whose sum is σ = 239024772. Its totient is φ = 212466432.

The previous prime is 225745589. The next prime is 225745613. The reversal of 225745601 is 106547522.

225745601 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 is an interprime number because it is at equal distance from previous prime (225745589) and next prime (225745613).

It can be written as a sum of positive squares in 2 ways, for example, as 81721600 + 144024001 = 9040^2 + 12001^2 .

It is a cyclic number.

It is not a de Polignac number, because 225745601 - 2¹⁰ = 225744577 is a prime.

It is a super-2 number, since 2×225745601² = 101922152741702402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225745691) 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, 6639560 + ... + 6639593.

It is an arithmetic number, because the mean of its divisors is an integer number (59756193).

Almost surely, 2^225745601 is an apocalyptic number.

It is an amenable number.

225745601 is a deficient number, since it is larger than the sum of its proper divisors (13279171).

225745601 is a wasteful number, since it uses less digits than its factorization.

225745601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13279170.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 225745601 is about 15024.8328110498. The cubic root of 225745601 is about 608.8912952422.

The spelling of 225745601 in words is "two hundred twenty-five million, seven hundred forty-five thousand, six hundred one".