25203425201 has 4 divisors (see below), whose sum is σ = 25247105892. Its totient is φ = 25159744512.

The previous prime is 25203425189. The next prime is 25203425237. The reversal of 25203425201 is 10252430252.

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 21410712976 + 3792712225 = 146324^2 + 61585^2 .

It is a cyclic number.

It is not a de Polignac number, because 25203425201 - 2¹⁴ = 25203408817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25203425101) 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, 21839480 + ... + 21840633.

It is an arithmetic number, because the mean of its divisors is an integer number (6311776473).

Almost surely, 2^25203425201 is an apocalyptic number.

It is an amenable number.

25203425201 is a deficient number, since it is larger than the sum of its proper divisors (43680691).

25203425201 is an equidigital number, since it uses as much as digits as its factorization.

25203425201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43680690.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 25203425201 its reverse (10252430252), we get a palindrome (35455855453).

The spelling of 25203425201 in words is "twenty-five billion, two hundred three million, four hundred twenty-five thousand, two hundred one".