25835407242 has 16 divisors (see below), whose sum is σ = 52645736160. Its totient is φ = 8449315472.

The previous prime is 25835407207. The next prime is 25835407243. The reversal of 25835407242 is 24270453852.

25835407242 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 25835407194 and 25835407203.

It is not an unprimeable number, because it can be changed into a prime (25835407243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40621392 + ... + 40622027.

It is an arithmetic number, because the mean of its divisors is an integer number (3290358510).

Almost surely, 2^25835407242 is an apocalyptic number.

25835407242 is an abundant number, since it is smaller than the sum of its proper divisors (26810328918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25835407242 is a wasteful number, since it uses less digits than its factorization.

25835407242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81243477.

The product of its (nonzero) digits is 537600, while the sum is 42.

The spelling of 25835407242 in words is "twenty-five billion, eight hundred thirty-five million, four hundred seven thousand, two hundred forty-two".