425746647525 has 24 divisors (see below), whose sum is σ = 714407119264. Its totient is φ = 223675848000.

The previous prime is 425746647499. The next prime is 425746647551. The reversal of 425746647525 is 525746647524.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (425746647499) and next prime (425746647551).

It is not a de Polignac number, because 425746647525 - 2⁷ = 425746647397 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 23 ways as a sum of consecutive naturals, for example, 42357826 + ... + 42367875.

Almost surely, 2^425746647525 is an apocalyptic number.

It is an amenable number.

425746647525 is a deficient number, since it is larger than the sum of its proper divisors (288660471739).

425746647525 is a wasteful number, since it uses less digits than its factorization.

425746647525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84725781 (or 84725776 counting only the distinct ones).

The product of its digits is 56448000, while the sum is 57.

Subtracting 425746647525 from its reverse (525746647524), we obtain a palindrome (99999999999).

The spelling of 425746647525 in words is "four hundred twenty-five billion, seven hundred forty-six million, six hundred forty-seven thousand, five hundred twenty-five".