25317201 has 16 divisors (see below), whose sum is σ = 41546624. Its totient is φ = 13353984.

The previous prime is 25317167. The next prime is 25317211. The reversal of 25317201 is 10271352.

It is not a de Polignac number, because 25317201 - 2⁶ = 25317137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25317211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46096 + ... + 46641.

It is an arithmetic number, because the mean of its divisors is an integer number (2596664).

Almost surely, 2^25317201 is an apocalyptic number.

25317201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25317201 is a deficient number, since it is larger than the sum of its proper divisors (16229423).

25317201 is a wasteful number, since it uses less digits than its factorization.

25317201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92760.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 25317201 is about 5031.6201168212. The cubic root of 25317201 is about 293.6332485480.

Adding to 25317201 its reverse (10271352), we get a palindrome (35588553).

The spelling of 25317201 in words is "twenty-five million, three hundred seventeen thousand, two hundred one".