2500405242 has 16 divisors (see below), whose sum is σ = 5002352640. Its totient is φ = 833211392.

The previous prime is 2500405177. The next prime is 2500405247. The reversal of 2500405242 is 2425040052.

It is a happy number.

2500405242 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 (2500405247) 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, 42618 + ... + 82565.

It is an arithmetic number, because the mean of its divisors is an integer number (312647040).

Almost surely, 2^2500405242 is an apocalyptic number.

2500405242 is an abundant number, since it is smaller than the sum of its proper divisors (2501947398).

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

2500405242 is a wasteful number, since it uses less digits than its factorization.

2500405242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128517.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 2500405242 is about 50004.0522557922. The cubic root of 2500405242 is about 1357.2821374037.

Adding to 2500405242 its reverse (2425040052), we get a palindrome (4925445294).

The spelling of 2500405242 in words is "two billion, five hundred million, four hundred five thousand, two hundred forty-two".