25264078447 has 8 divisors (see below), whose sum is σ = 25960264832. Its totient is φ = 24568596000.

The previous prime is 25264078397. The next prime is 25264078453. The reversal of 25264078447 is 74487046252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25264078447 - 2¹¹ = 25264076399 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 25264078447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25264078247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102804 + ... + 247177.

It is an arithmetic number, because the mean of its divisors is an integer number (3245033104).

Almost surely, 2^25264078447 is an apocalyptic number.

25264078447 is a deficient number, since it is larger than the sum of its proper divisors (696186385).

25264078447 is a wasteful number, since it uses less digits than its factorization.

25264078447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351969.

The product of its (nonzero) digits is 3010560, while the sum is 49.

The spelling of 25264078447 in words is "twenty-five billion, two hundred sixty-four million, seventy-eight thousand, four hundred forty-seven".