222450512525 has 6 divisors (see below), whose sum is σ = 275838635562. Its totient is φ = 177960410000.

The previous prime is 222450512507. The next prime is 222450512533. The reversal of 222450512525 is 525215054222.

It can be written as a sum of positive squares in 3 ways, for example, as 41915601289 + 180534911236 = 204733^2 + 424894^2 .

It is not a de Polignac number, because 222450512525 - 2²⁶ = 222383403661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4449010226 + ... + 4449010275.

It is an arithmetic number, because the mean of its divisors is an integer number (45973105927).

Almost surely, 2^222450512525 is an apocalyptic number.

222450512525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222450512525 is a deficient number, since it is larger than the sum of its proper divisors (53388123037).

222450512525 is an equidigital number, since it uses as much as digits as its factorization.

222450512525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8898020511 (or 8898020506 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

Adding to 222450512525 its reverse (525215054222), we get a palindrome (747665566747).

The spelling of 222450512525 in words is "two hundred twenty-two billion, four hundred fifty million, five hundred twelve thousand, five hundred twenty-five".