225216536 has 8 divisors (see below), whose sum is σ = 422281020. Its totient is φ = 112608264.

The previous prime is 225216517. The next prime is 225216569. The reversal of 225216536 is 635612522.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×225216536³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14076026 + ... + 14076041.

Almost surely, 2^225216536 is an apocalyptic number.

It is an amenable number.

225216536 is a deficient number, since it is larger than the sum of its proper divisors (197064484).

225216536 is a wasteful number, since it uses less digits than its factorization.

225216536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28152073 (or 28152069 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 225216536 is about 15007.2161309152. The cubic root of 225216536 is about 608.4152504353.

The spelling of 225216536 in words is "two hundred twenty-five million, two hundred sixteen thousand, five hundred thirty-six".