225984870987 has 8 divisors (see below), whose sum is σ = 304943440704. Its totient is φ = 148841440968.

The previous prime is 225984870971. The next prime is 225984870989. The reversal of 225984870987 is 789078489522.

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

It is not a de Polignac number, because 225984870987 - 2⁴ = 225984870971 is a prime.

It is a super-3 number, since 3×225984870987³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (225984870989) 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, 453784633 + ... + 453785130.

It is an arithmetic number, because the mean of its divisors is an integer number (38117930088).

Almost surely, 2^225984870987 is an apocalyptic number.

225984870987 is a deficient number, since it is larger than the sum of its proper divisors (78958569717).

225984870987 is an equidigital number, since it uses as much as digits as its factorization.

225984870987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907569849.

The product of its (nonzero) digits is 162570240, while the sum is 69.

The spelling of 225984870987 in words is "two hundred twenty-five billion, nine hundred eighty-four million, eight hundred seventy thousand, nine hundred eighty-seven".