225601641 has 12 divisors (see below), whose sum is σ = 340037568. Its totient is φ = 143861784.

The previous prime is 225601637. The next prime is 225601681. The reversal of 225601641 is 146106522.

225601641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225601641 - 2² = 225601637 is a prime.

It is a super-2 number, since 2×225601641² = 101792200843785762, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225601631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 544725 + ... + 545138.

It is an arithmetic number, because the mean of its divisors is an integer number (28336464).

Almost surely, 2^225601641 is an apocalyptic number.

It is an amenable number.

225601641 is a deficient number, since it is larger than the sum of its proper divisors (114435927).

225601641 is a wasteful number, since it uses less digits than its factorization.

225601641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089892 (or 1089889 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 225601641 is about 15020.0413115277. The cubic root of 225601641 is about 608.7618359008.

The spelling of 225601641 in words is "two hundred twenty-five million, six hundred one thousand, six hundred forty-one".