225016613421 has 8 divisors (see below), whose sum is σ = 300755703360. Its totient is φ = 149644299552.

The previous prime is 225016613417. The next prime is 225016613453. The reversal of 225016613421 is 124316610522.

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

It is not a de Polignac number, because 225016613421 - 2² = 225016613417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225016613491) 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, 91692585 + ... + 91695038.

It is an arithmetic number, because the mean of its divisors is an integer number (37594462920).

Almost surely, 2^225016613421 is an apocalyptic number.

It is an amenable number.

225016613421 is a deficient number, since it is larger than the sum of its proper divisors (75739089939).

225016613421 is a wasteful number, since it uses less digits than its factorization.

225016613421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183388035.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 225016613421 in words is "two hundred twenty-five billion, sixteen million, six hundred thirteen thousand, four hundred twenty-one".