25420241399 has 16 divisors (see below), whose sum is σ = 29476855296. Its totient is φ = 21470248800.

The previous prime is 25420241377. The next prime is 25420241419. The reversal of 25420241399 is 99314202452.

It is a de Polignac number, because none of the positive numbers 2^k-25420241399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25420241369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 974669 + ... + 1000409.

It is an arithmetic number, because the mean of its divisors is an integer number (1842303456).

Almost surely, 2^25420241399 is an apocalyptic number.

25420241399 is a deficient number, since it is larger than the sum of its proper divisors (4056613897).

25420241399 is a wasteful number, since it uses less digits than its factorization.

25420241399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27806.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 25420241399 in words is "twenty-five billion, four hundred twenty million, two hundred forty-one thousand, three hundred ninety-nine".