9925457442 has 16 divisors (see below), whose sum is σ = 19852667040. Its totient is φ = 3308193792.

The previous prime is 9925457441. The next prime is 9925457447. The reversal of 9925457442 is 2447545299.

9925457442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (9925457441) 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 7 ways as a sum of consecutive naturals, for example, 7458 + ... + 141090.

It is an arithmetic number, because the mean of its divisors is an integer number (1240791690).

Almost surely, 2^9925457442 is an apocalyptic number.

9925457442 is an abundant number, since it is smaller than the sum of its proper divisors (9927209598).

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

9925457442 is a wasteful number, since it uses less digits than its factorization.

9925457442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146017.

The product of its digits is 3628800, while the sum is 51.

The square root of 9925457442 is about 99626.5900349902. The cubic root of 9925457442 is about 2149.0680974477.

The spelling of 9925457442 in words is "nine billion, nine hundred twenty-five million, four hundred fifty-seven thousand, four hundred forty-two".