425445415445 has 16 divisors (see below), whose sum is σ = 512697385200. Its totient is φ = 338917077504.

The previous prime is 425445415261. The next prime is 425445415459. The reversal of 425445415445 is 544514544524.

It can be written as a sum of positive squares in 8 ways, for example, as 181590185956 + 243855229489 = 426134^2 + 493817^2 .

It is a cyclic number.

It is not a de Polignac number, because 425445415445 - 2²⁰ = 425444366869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425445415445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1112777 + ... + 1445393.

It is an arithmetic number, because the mean of its divisors is an integer number (32043586575).

Almost surely, 2^425445415445 is an apocalyptic number.

It is an amenable number.

425445415445 is a deficient number, since it is larger than the sum of its proper divisors (87251969755).

425445415445 is a wasteful number, since it uses less digits than its factorization.

425445415445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333704.

The product of its digits is 5120000, while the sum is 47.

Adding to 425445415445 its reverse (544514544524), we get a palindrome (969959959969).

The spelling of 425445415445 in words is "four hundred twenty-five billion, four hundred forty-five million, four hundred fifteen thousand, four hundred forty-five".