125551002425 has 6 divisors (see below), whose sum is σ = 155683243038. Its totient is φ = 100440801920.

The previous prime is 125551002397. The next prime is 125551002449. The reversal of 125551002425 is 524200155521.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 40708711696 + 84842290729 = 201764^2 + 291277^2 .

It is not a de Polignac number, because 125551002425 - 2⁸ = 125551002169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125551002391 and 125551002400.

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, 2511020024 + ... + 2511020073.

It is an arithmetic number, because the mean of its divisors is an integer number (25947207173).

Almost surely, 2^125551002425 is an apocalyptic number.

It is an amenable number.

125551002425 is a deficient number, since it is larger than the sum of its proper divisors (30132240613).

125551002425 is an equidigital number, since it uses as much as digits as its factorization.

125551002425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5022040107 (or 5022040102 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

Adding to 125551002425 its reverse (524200155521), we get a palindrome (649751157946).

The spelling of 125551002425 in words is "one hundred twenty-five billion, five hundred fifty-one million, two thousand, four hundred twenty-five".