25331129 has 2 divisors, whose sum is σ = 25331130. Its totient is φ = 25331128.

The previous prime is 25331107. The next prime is 25331143. The reversal of 25331129 is 92113352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14592400 + 10738729 = 3820^2 + 3277^2 .

It is a cyclic number.

It is not a de Polignac number, because 25331129 - 2¹² = 25327033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 25331098 and 25331107.

It is not a weakly prime, because it can be changed into another prime (25331029) 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 as a sum of consecutive naturals, namely, 12665564 + 12665565.

It is an arithmetic number, because the mean of its divisors is an integer number (12665565).

Almost surely, 2^25331129 is an apocalyptic number.

It is an amenable number.

25331129 is a deficient number, since it is larger than the sum of its proper divisors (1).

25331129 is an equidigital number, since it uses as much as digits as its factorization.

25331129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 26.

The square root of 25331129 is about 5033.0039737715. The cubic root of 25331129 is about 293.6870851226.

The spelling of 25331129 in words is "twenty-five million, three hundred thirty-one thousand, one hundred twenty-nine".