425066660525 has 48 divisors (see below), whose sum is σ = 594995459520. Its totient is φ = 299117145600.

The previous prime is 425066660509. The next prime is 425066660527. The reversal of 425066660525 is 525066660524.

It is not a de Polignac number, because 425066660525 - 2⁴ = 425066660509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425066660525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425066660527) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202046 + ... + 943904.

It is an arithmetic number, because the mean of its divisors is an integer number (12395738740).

Almost surely, 2^425066660525 is an apocalyptic number.

It is an amenable number.

425066660525 is a deficient number, since it is larger than the sum of its proper divisors (169928798995).

425066660525 is a wasteful number, since it uses less digits than its factorization.

425066660525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741966 (or 741961 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 47.

Subtracting 425066660525 from its reverse (525066660524), we obtain a palindrome (99999999999).

The spelling of 425066660525 in words is "four hundred twenty-five billion, sixty-six million, six hundred sixty thousand, five hundred twenty-five".