25190609941 has 4 divisors (see below), whose sum is σ = 28789268512. Its totient is φ = 21591951372.

The previous prime is 25190609921. The next prime is 25190610017. The reversal of 25190609941 is 14990609152.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 25190609941 - 2⁹ = 25190609429 is a prime.

It is the 158716-th Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25190609891 and 25190609900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25190609921) by changing a digit.

It is a nontrivial repunit in base 158715.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1799329275 + ... + 1799329288.

It is an arithmetic number, because the mean of its divisors is an integer number (7197317128).

Almost surely, 2^25190609941 is an apocalyptic number.

It is an amenable number.

25190609941 is a deficient number, since it is larger than the sum of its proper divisors (3598658571).

25190609941 is an equidigital number, since it uses as much as digits as its factorization.

25190609941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598658570.

The product of its (nonzero) digits is 174960, while the sum is 46.

The spelling of 25190609941 in words is "twenty-five billion, one hundred ninety million, six hundred nine thousand, nine hundred forty-one".