2501618442 has 32 divisors (see below), whose sum is σ = 5320728000. Its totient is φ = 781387008.

The previous prime is 2501618419. The next prime is 2501618447. The reversal of 2501618442 is 2448161052.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2501618447) 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, 30192 + ... + 76907.

It is an arithmetic number, because the mean of its divisors is an integer number (166272750).

Almost surely, 2^2501618442 is an apocalyptic number.

2501618442 is an abundant number, since it is smaller than the sum of its proper divisors (2819109558).

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

2501618442 is a wasteful number, since it uses less digits than its factorization.

2501618442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107350.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 2501618442 is about 50016.1818014930. The cubic root of 2501618442 is about 1357.5016202851.

Adding to 2501618442 its reverse (2448161052), we get a palindrome (4949779494).

The spelling of 2501618442 in words is "two billion, five hundred one million, six hundred eighteen thousand, four hundred forty-two".