225143443021535 has 8 divisors (see below), whose sum is σ = 270190452195216. Its totient is φ = 180102540704320.

The previous prime is 225143443021417. The next prime is 225143443021561. The reversal of 225143443021535 is 535120344341522.

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

It is not a de Polignac number, because 225143443021535 - 2²⁰ = 225143441972959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1526633006 + ... + 1526780475.

It is an arithmetic number, because the mean of its divisors is an integer number (33773806524402).

Almost surely, 2^{225143443021535} is an apocalyptic number.

225143443021535 is a deficient number, since it is larger than the sum of its proper divisors (45047009173681).

225143443021535 is a wasteful number, since it uses less digits than its factorization.

225143443021535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053428233.

The product of its (nonzero) digits is 1728000, while the sum is 44.

The spelling of 225143443021535 in words is "two hundred twenty-five trillion, one hundred forty-three billion, four hundred forty-three million, twenty-one thousand, five hundred thirty-five".