245425242 has 32 divisors (see below), whose sum is σ = 518886720. Its totient is φ = 77172480.

The previous prime is 245425237. The next prime is 245425247. The reversal of 245425242 is 242524542.

It is an interprime number because it is at equal distance from previous prime (245425237) and next prime (245425247).

It is not an unprimeable number, because it can be changed into a prime (245425247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23008 + ... + 31940.

It is an arithmetic number, because the mean of its divisors is an integer number (16215210).

Almost surely, 2^245425242 is an apocalyptic number.

245425242 is an abundant number, since it is smaller than the sum of its proper divisors (273461478).

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

245425242 is a wasteful number, since it uses less digits than its factorization.

245425242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9198.

The product of its digits is 25600, while the sum is 30.

The square root of 245425242 is about 15666.0538107080. The cubic root of 245425242 is about 626.0942894375.

Adding to 245425242 its reverse (242524542), we get a palindrome (487949784).

The spelling of 245425242 in words is "two hundred forty-five million, four hundred twenty-five thousand, two hundred forty-two".