25297239941 has 4 divisors (see below), whose sum is σ = 25306471884. Its totient is φ = 25288008000.

The previous prime is 25297239917. The next prime is 25297240051. The reversal of 25297239941 is 14993279252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8405039041 + 16892200900 = 91679^2 + 129970^2 .

It is a cyclic number.

It is not a de Polignac number, because 25297239941 - 2¹⁰ = 25297238917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25297230941) 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, 4611860 + ... + 4617341.

It is an arithmetic number, because the mean of its divisors is an integer number (6326617971).

Almost surely, 2^25297239941 is an apocalyptic number.

It is an amenable number.

25297239941 is a deficient number, since it is larger than the sum of its proper divisors (9231943).

25297239941 is an equidigital number, since it uses as much as digits as its factorization.

25297239941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9231942.

The product of its digits is 2449440, while the sum is 53.

The spelling of 25297239941 in words is "twenty-five billion, two hundred ninety-seven million, two hundred thirty-nine thousand, nine hundred forty-one".