225651776657 has 8 divisors (see below), whose sum is σ = 244008930816. Its totient is φ = 207859458112.

The previous prime is 225651776617. The next prime is 225651776683. The reversal of 225651776657 is 756677156522.

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

It is a cyclic number.

It is not a de Polignac number, because 225651776657 - 2¹² = 225651772561 is a prime.

It is a super-2 number, since 2×225651776657² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225651776596 and 225651776605.

It is not an unprimeable number, because it can be changed into a prime (225651776617) 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, 141208073 + ... + 141209670.

It is an arithmetic number, because the mean of its divisors is an integer number (30501116352).

Almost surely, 2^225651776657 is an apocalyptic number.

It is an amenable number.

225651776657 is a deficient number, since it is larger than the sum of its proper divisors (18357154159).

225651776657 is a wasteful number, since it uses less digits than its factorization.

225651776657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282417807.

The product of its digits is 37044000, while the sum is 59.

The spelling of 225651776657 in words is "two hundred twenty-five billion, six hundred fifty-one million, seven hundred seventy-six thousand, six hundred fifty-seven".