225238696687 has 4 divisors (see below), whose sum is σ = 225383174640. Its totient is φ = 225094218736.

The previous prime is 225238696633. The next prime is 225238696747. The reversal of 225238696687 is 786696832522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225238696687 - 2²⁷ = 225104478959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225238696187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72236638 + ... + 72239755.

It is an arithmetic number, because the mean of its divisors is an integer number (56345793660).

Almost surely, 2^225238696687 is an apocalyptic number.

225238696687 is a deficient number, since it is larger than the sum of its proper divisors (144477953).

225238696687 is a wasteful number, since it uses less digits than its factorization.

225238696687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144477952.

The product of its digits is 104509440, while the sum is 64.

The spelling of 225238696687 in words is "two hundred twenty-five billion, two hundred thirty-eight million, six hundred ninety-six thousand, six hundred eighty-seven".