25315201 has 4 divisors (see below), whose sum is σ = 26647600. Its totient is φ = 23982804.

The previous prime is 25315181. The next prime is 25315223. The reversal of 25315201 is 10251352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25315201 - 2²¹ = 23218049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1332379 = 25315201 / (2 + 5 + 3 + 1 + 5 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25315001) 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, 666171 + ... + 666208.

It is an arithmetic number, because the mean of its divisors is an integer number (6661900).

Almost surely, 2^25315201 is an apocalyptic number.

It is an amenable number.

25315201 is a deficient number, since it is larger than the sum of its proper divisors (1332399).

25315201 is a wasteful number, since it uses less digits than its factorization.

25315201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332398.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 25315201 is about 5031.4213697523. The cubic root of 25315201 is about 293.6255162298.

Adding to 25315201 its reverse (10251352), we get a palindrome (35566553).

The spelling of 25315201 in words is "twenty-five million, three hundred fifteen thousand, two hundred one".