225587466749 has 2 divisors, whose sum is σ = 225587466750. Its totient is φ = 225587466748.

The previous prime is 225587466743. The next prime is 225587466823. The reversal of 225587466749 is 947664785522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218794740025 + 6792726724 = 467755^2 + 82418^2 .

It is a cyclic number.

It is not a de Polignac number, because 225587466749 - 2⁴ = 225587466733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225587466743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112793733374 + 112793733375.

It is an arithmetic number, because the mean of its divisors is an integer number (112793733375).

Almost surely, 2^225587466749 is an apocalyptic number.

It is an amenable number.

225587466749 is a deficient number, since it is larger than the sum of its proper divisors (1).

225587466749 is an equidigital number, since it uses as much as digits as its factorization.

225587466749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 203212800, while the sum is 65.

The spelling of 225587466749 in words is "two hundred twenty-five billion, five hundred eighty-seven million, four hundred sixty-six thousand, seven hundred forty-nine".