25450201 has 4 divisors (see below), whose sum is σ = 29085952. Its totient is φ = 21814452.

The previous prime is 25450193. The next prime is 25450211. The reversal of 25450201 is 10205452.

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 25450201 - 2³ = 25450193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25450211) 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, 1817865 + ... + 1817878.

It is an arithmetic number, because the mean of its divisors is an integer number (7271488).

Almost surely, 2^25450201 is an apocalyptic number.

It is an amenable number.

25450201 is a deficient number, since it is larger than the sum of its proper divisors (3635751).

25450201 is an equidigital number, since it uses as much as digits as its factorization.

25450201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635750.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 25450201 is about 5044.8192237185. The cubic root of 25450201 is about 294.1465363882.

Adding to 25450201 its reverse (10205452), we get a palindrome (35655653).

It can be divided in two parts, 25450 and 201, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 25450201 in words is "twenty-five million, four hundred fifty thousand, two hundred one".