125523222025 has 6 divisors (see below), whose sum is σ = 155648795342. Its totient is φ = 100418577600.

The previous prime is 125523222023. The next prime is 125523222047. The reversal of 125523222025 is 520222325521.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 35579013376 + 89944208649 = 188624^2 + 299907^2 .

It is not a de Polignac number, because 125523222025 - 2¹ = 125523222023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125523222023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2510464416 + ... + 2510464465.

Almost surely, 2^125523222025 is an apocalyptic number.

It is an amenable number.

125523222025 is a deficient number, since it is larger than the sum of its proper divisors (30125573317).

125523222025 is an equidigital number, since it uses as much as digits as its factorization.

125523222025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5020928891 (or 5020928886 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 125523222025 its reverse (520222325521), we get a palindrome (645745547546).

The spelling of 125523222025 in words is "one hundred twenty-five billion, five hundred twenty-three million, two hundred twenty-two thousand, twenty-five".