25340350479 has 4 divisors (see below), whose sum is σ = 33787133976. Its totient is φ = 16893566984.

The previous prime is 25340350463. The next prime is 25340350523. The reversal of 25340350479 is 97405304352.

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

It is a cyclic number.

It is not a de Polignac number, because 25340350479 - 2⁴ = 25340350463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25340350479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25340350279) 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, 4223391744 + ... + 4223391749.

It is an arithmetic number, because the mean of its divisors is an integer number (8446783494).

Almost surely, 2^25340350479 is an apocalyptic number.

25340350479 is a deficient number, since it is larger than the sum of its proper divisors (8446783497).

25340350479 is an equidigital number, since it uses as much as digits as its factorization.

25340350479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8446783496.

The product of its (nonzero) digits is 453600, while the sum is 42.

The spelling of 25340350479 in words is "twenty-five billion, three hundred forty million, three hundred fifty thousand, four hundred seventy-nine".