225545522401 has 4 divisors (see below), whose sum is σ = 230790767152. Its totient is φ = 220300277652.

The previous prime is 225545522393. The next prime is 225545522431. The reversal of 225545522401 is 104225545522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225545522401 - 2³ = 225545522393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225545522431) 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, 2622622311 + ... + 2622622396.

It is an arithmetic number, because the mean of its divisors is an integer number (57697691788).

Almost surely, 2^225545522401 is an apocalyptic number.

It is an amenable number.

225545522401 is a deficient number, since it is larger than the sum of its proper divisors (5245244751).

225545522401 is an equidigital number, since it uses as much as digits as its factorization.

225545522401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5245244750.

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 225545522401 in words is "two hundred twenty-five billion, five hundred forty-five million, five hundred twenty-two thousand, four hundred one".