25914121 has 2 divisors, whose sum is σ = 25914122. Its totient is φ = 25914120.

The previous prime is 25914113. The next prime is 25914131. The reversal of 25914121 is 12141952.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24364096 + 1550025 = 4936^2 + 1245^2 .

It is a cyclic number.

It is not a de Polignac number, because 25914121 - 2³ = 25914113 is a prime.

It is not a weakly prime, because it can be changed into another prime (25914131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12957060 + 12957061.

It is an arithmetic number, because the mean of its divisors is an integer number (12957061).

Almost surely, 2^25914121 is an apocalyptic number.

It is an amenable number.

25914121 is a deficient number, since it is larger than the sum of its proper divisors (1).

25914121 is an equidigital number, since it uses as much as digits as its factorization.

25914121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 25.

The square root of 25914121 is about 5090.5914194718. The cubic root of 25914121 is about 295.9230724426.

The spelling of 25914121 in words is "twenty-five million, nine hundred fourteen thousand, one hundred twenty-one".