25743042201 has 4 divisors (see below), whose sum is σ = 34324056272. Its totient is φ = 17162028132.

The previous prime is 25743042187. The next prime is 25743042203. The reversal of 25743042201 is 10224034752.

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 de Polignac number, because none of the positive numbers 2^k-25743042201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25743042203) 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, 4290507031 + ... + 4290507036.

It is an arithmetic number, because the mean of its divisors is an integer number (8581014068).

Almost surely, 2^25743042201 is an apocalyptic number.

It is an amenable number.

25743042201 is a deficient number, since it is larger than the sum of its proper divisors (8581014071).

25743042201 is an equidigital number, since it uses as much as digits as its factorization.

25743042201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8581014070.

The product of its (nonzero) digits is 13440, while the sum is 30.

Adding to 25743042201 its reverse (10224034752), we get a palindrome (35967076953).

The spelling of 25743042201 in words is "twenty-five billion, seven hundred forty-three million, forty-two thousand, two hundred one".