25145434432201 has 2 divisors, whose sum is σ = 25145434432202. Its totient is φ = 25145434432200.

The previous prime is 25145434432127. The next prime is 25145434432207. The reversal of 25145434432201 is 10223443454152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14746744342201 + 10398690090000 = 3840149^2 + 3224700^2 .

It is a cyclic number.

It is not a de Polignac number, because 25145434432201 - 2¹¹ = 25145434430153 is a prime.

It is not a weakly prime, because it can be changed into another prime (25145434432207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12572717216100 + 12572717216101.

It is an arithmetic number, because the mean of its divisors is an integer number (12572717216101).

Almost surely, 2^{25145434432201} is an apocalyptic number.

It is an amenable number.

25145434432201 is a deficient number, since it is larger than the sum of its proper divisors (1).

25145434432201 is an equidigital number, since it uses as much as digits as its factorization.

25145434432201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 25145434432201 its reverse (10223443454152), we get a palindrome (35368877886353).

The spelling of 25145434432201 in words is "twenty-five trillion, one hundred forty-five billion, four hundred thirty-four million, four hundred thirty-two thousand, two hundred one".