648825384425 has 12 divisors (see below), whose sum is σ = 804583568460. Its totient is φ = 519034441920.

The previous prime is 648825384421. The next prime is 648825384439. The reversal of 648825384425 is 524483528846.

It can be written as a sum of positive squares in 6 ways, for example, as 8101980121 + 640723404304 = 90011^2 + 800452^2 .

It is not a de Polignac number, because 648825384425 - 2² = 648825384421 is a prime.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (648825384421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126722 + ... + 1146171.

It is an arithmetic number, because the mean of its divisors is an integer number (67048630705).

Almost surely, 2^648825384425 is an apocalyptic number.

It is an amenable number.

648825384425 is a deficient number, since it is larger than the sum of its proper divisors (155758184035).

648825384425 is a wasteful number, since it uses less digits than its factorization.

648825384425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293292 (or 1293287 counting only the distinct ones).

The product of its digits is 58982400, while the sum is 59.

The spelling of 648825384425 in words is "six hundred forty-eight billion, eight hundred twenty-five million, three hundred eighty-four thousand, four hundred twenty-five".