25240412221113 has 4 divisors (see below), whose sum is σ = 33653882961488. Its totient is φ = 16826941480740.

The previous prime is 25240412221091. The next prime is 25240412221127. The reversal of 25240412221113 is 31112221404252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25240412221113 - 2¹³ = 25240412212921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25240412221613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4206735370183 + ... + 4206735370188.

It is an arithmetic number, because the mean of its divisors is an integer number (8413470740372).

Almost surely, 2^{25240412221113} is an apocalyptic number.

It is an amenable number.

25240412221113 is a deficient number, since it is larger than the sum of its proper divisors (8413470740375).

25240412221113 is an equidigital number, since it uses as much as digits as its factorization.

25240412221113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8413470740374.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 25240412221113 its reverse (31112221404252), we get a palindrome (56352633625365).

The spelling of 25240412221113 in words is "twenty-five trillion, two hundred forty billion, four hundred twelve million, two hundred twenty-one thousand, one hundred thirteen".