225006645631 has 2 divisors, whose sum is σ = 225006645632. Its totient is φ = 225006645630.

The previous prime is 225006645583. The next prime is 225006645649. The reversal of 225006645631 is 136546600522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225006645631 - 2¹¹ = 225006643583 is a prime.

It is a super-2 number, since 2×225006645631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225006645431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112503322815 + 112503322816.

It is an arithmetic number, because the mean of its divisors is an integer number (112503322816).

Almost surely, 2^225006645631 is an apocalyptic number.

225006645631 is a deficient number, since it is larger than the sum of its proper divisors (1).

225006645631 is an equidigital number, since it uses as much as digits as its factorization.

225006645631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 225006645631 in words is "two hundred twenty-five billion, six million, six hundred forty-five thousand, six hundred thirty-one".