25155929 has 2 divisors, whose sum is σ = 25155930. Its totient is φ = 25155928.

The previous prime is 25155917. The next prime is 25155941. The reversal of 25155929 is 92955152.

It is a balanced prime because it is at equal distance from previous prime (25155917) and next prime (25155941).

It can be written as a sum of positive squares in only one way, i.e., 20912329 + 4243600 = 4573^2 + 2060^2 .

It is a cyclic number.

It is not a de Polignac number, because 25155929 - 2²⁰ = 24107353 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25155892 and 25155901.

It is not a weakly prime, because it can be changed into another prime (25155029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12577964 + 12577965.

It is an arithmetic number, because the mean of its divisors is an integer number (12577965).

Almost surely, 2^25155929 is an apocalyptic number.

It is an amenable number.

25155929 is a deficient number, since it is larger than the sum of its proper divisors (1).

25155929 is an equidigital number, since it uses as much as digits as its factorization.

25155929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40500, while the sum is 38.

The square root of 25155929 is about 5015.5686616774. The cubic root of 25155929 is about 293.0084331694.

The spelling of 25155929 in words is "twenty-five million, one hundred fifty-five thousand, nine hundred twenty-nine".