225653321535 has 16 divisors (see below), whose sum is σ = 361226156256. Its totient is φ = 120288157568.

The previous prime is 225653321521. The next prime is 225653321567. The reversal of 225653321535 is 535123356522.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 225653321535 - 2¹⁴ = 225653305151 is a prime.

It is a super-3 number, since 3×225653321535³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3736584 + ... + 3796493.

It is an arithmetic number, because the mean of its divisors is an integer number (22576634766).

Almost surely, 2^225653321535 is an apocalyptic number.

225653321535 is a deficient number, since it is larger than the sum of its proper divisors (135572834721).

225653321535 is a wasteful number, since it uses less digits than its factorization.

225653321535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7535082.

The product of its digits is 810000, while the sum is 42.

The spelling of 225653321535 in words is "two hundred twenty-five billion, six hundred fifty-three million, three hundred twenty-one thousand, five hundred thirty-five".