1325405043225 has 120 divisors (see below), whose sum is σ = 2569045046040. Its totient is φ = 674798791680.

The previous prime is 1325405043217. The next prime is 1325405043227. The reversal of 1325405043225 is 5223405045231.

1325405043225 is a `hidden beast` number, since 1 + 3 + 2 + 540 + 50 + 43 + 2 + 25 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 394149162969 + 931255880256 = 627813^2 + 965016^2 .

It is not a de Polignac number, because 1325405043225 - 2³ = 1325405043217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1325405043225.

It is not an unprimeable number, because it can be changed into a prime (1325405043227) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3804141 + ... + 4137909.

It is an arithmetic number, because the mean of its divisors is an integer number (21408708717).

Almost surely, 2^{1325405043225} is an apocalyptic number.

1325405043225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1325405043225 is a deficient number, since it is larger than the sum of its proper divisors (1243640002815).

1325405043225 is a wasteful number, since it uses less digits than its factorization.

1325405043225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333881 (or 333867 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 1325405043225 in words is "one trillion, three hundred twenty-five billion, four hundred five million, forty-three thousand, two hundred twenty-five".