225646442053 has 8 divisors (see below), whose sum is σ = 229484374560. Its totient is φ = 221808956880.

The previous prime is 225646442041. The next prime is 225646442069. The reversal of 225646442053 is 350244646522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225646442053 - 2²¹ = 225644344901 is a prime.

It is a super-2 number, since 2×225646442053² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225646442003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 998526 + ... + 1203472.

It is an arithmetic number, because the mean of its divisors is an integer number (28685546820).

Almost surely, 2^225646442053 is an apocalyptic number.

It is an amenable number.

225646442053 is a deficient number, since it is larger than the sum of its proper divisors (3837932507).

225646442053 is a wasteful number, since it uses less digits than its factorization.

225646442053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223667.

The product of its (nonzero) digits is 1382400, while the sum is 43.

The spelling of 225646442053 in words is "two hundred twenty-five billion, six hundred forty-six million, four hundred forty-two thousand, fifty-three".