25403256301 has 2 divisors, whose sum is σ = 25403256302. Its totient is φ = 25403256300.

The previous prime is 25403256299. The next prime is 25403256313. The reversal of 25403256301 is 10365230452.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22552230276 + 2851026025 = 150174^2 + 53395^2 .

It is a cyclic number.

It is not a de Polignac number, because 25403256301 - 2¹ = 25403256299 is a prime.

Together with 25403256299, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25403256391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12701628150 + 12701628151.

It is an arithmetic number, because the mean of its divisors is an integer number (12701628151).

Almost surely, 2^25403256301 is an apocalyptic number.

It is an amenable number.

25403256301 is a deficient number, since it is larger than the sum of its proper divisors (1).

25403256301 is an equidigital number, since it uses as much as digits as its factorization.

25403256301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 25403256301 its reverse (10365230452), we get a palindrome (35768486753).

The spelling of 25403256301 in words is "twenty-five billion, four hundred three million, two hundred fifty-six thousand, three hundred one".