225270640443 has 32 divisors (see below), whose sum is σ = 327355187200. Its totient is φ = 137270311200.

The previous prime is 225270640421. The next prime is 225270640471. The reversal of 225270640443 is 344046072522.

It is not a de Polignac number, because 225270640443 - 2⁹ = 225270639931 is a prime.

It is a super-3 number, since 3×225270640443³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225270640643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 392298 + ... + 777456.

It is an arithmetic number, because the mean of its divisors is an integer number (10229849600).

Almost surely, 2^225270640443 is an apocalyptic number.

225270640443 is a deficient number, since it is larger than the sum of its proper divisors (102084546757).

225270640443 is a wasteful number, since it uses less digits than its factorization.

225270640443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385543.

The product of its (nonzero) digits is 322560, while the sum is 39.

The spelling of 225270640443 in words is "two hundred twenty-five billion, two hundred seventy million, six hundred forty thousand, four hundred forty-three".