425678876525 has 24 divisors (see below), whose sum is σ = 610025866560. Its totient is φ = 288614367360.

The previous prime is 425678876509. The next prime is 425678876527. The reversal of 425678876525 is 525678876524.

It is a happy number.

It is not a de Polignac number, because 425678876525 - 2⁴ = 425678876509 is a prime.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425678876527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13649879 + ... + 13681028.

It is an arithmetic number, because the mean of its divisors is an integer number (25417744440).

Almost surely, 2^425678876525 is an apocalyptic number.

It is an amenable number.

425678876525 is a deficient number, since it is larger than the sum of its proper divisors (184346990035).

425678876525 is a wasteful number, since it uses less digits than its factorization.

425678876525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27331013 (or 27331008 counting only the distinct ones).

The product of its digits is 225792000, while the sum is 65.

Subtracting 425678876525 from its reverse (525678876524), we obtain a palindrome (99999999999).

The spelling of 425678876525 in words is "four hundred twenty-five billion, six hundred seventy-eight million, eight hundred seventy-six thousand, five hundred twenty-five".