25260004465 has 4 divisors (see below), whose sum is σ = 30312005364. Its totient is φ = 20208003568.

The previous prime is 25260004463. The next prime is 25260004477. The reversal of 25260004465 is 56440006252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2864283361 + 22395721104 = 53519^2 + 149652^2 .

It is a cyclic number.

It is not a de Polignac number, because 25260004465 - 2¹ = 25260004463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25260004465.

It is not an unprimeable number, because it can be changed into a prime (25260004463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2526000442 + ... + 2526000451.

It is an arithmetic number, because the mean of its divisors is an integer number (7578001341).

Almost surely, 2^25260004465 is an apocalyptic number.

It is an amenable number.

25260004465 is a deficient number, since it is larger than the sum of its proper divisors (5052000899).

25260004465 is an equidigital number, since it uses as much as digits as its factorization.

25260004465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052000898.

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 25260004465 in words is "twenty-five billion, two hundred sixty million, four thousand, four hundred sixty-five".