25123801 has 2 divisors, whose sum is σ = 25123802. Its totient is φ = 25123800.

The previous prime is 25123799. The next prime is 25123837. The reversal of 25123801 is 10832152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24000201 + 1123600 = 4899^2 + 1060^2 .

It is a cyclic number.

It is not a de Polignac number, because 25123801 - 2¹ = 25123799 is a prime.

Together with 25123799, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25123001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12561900 + 12561901.

It is an arithmetic number, because the mean of its divisors is an integer number (12561901).

Almost surely, 2^25123801 is an apocalyptic number.

It is an amenable number.

25123801 is a deficient number, since it is larger than the sum of its proper divisors (1).

25123801 is an equidigital number, since it uses as much as digits as its factorization.

25123801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 25123801 is about 5012.3648111445. The cubic root of 25123801 is about 292.8836410459.

Adding to 25123801 its reverse (10832152), we get a palindrome (35955953).

The spelling of 25123801 in words is "twenty-five million, one hundred twenty-three thousand, eight hundred one".