25011229 has 2 divisors, whose sum is σ = 25011230. Its totient is φ = 25011228.

The previous prime is 25011227. The next prime is 25011247. The reversal of 25011229 is 92211052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14784025 + 10227204 = 3845^2 + 3198^2 .

It is a cyclic number.

It is not a de Polignac number, because 25011229 - 2¹ = 25011227 is a prime.

Together with 25011227, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25011227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12505614 + 12505615.

It is an arithmetic number, because the mean of its divisors is an integer number (12505615).

Almost surely, 2^25011229 is an apocalyptic number.

It is an amenable number.

25011229 is a deficient number, since it is larger than the sum of its proper divisors (1).

25011229 is an equidigital number, since it uses as much as digits as its factorization.

25011229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 25011229 is about 5001.1227739379. The cubic root of 25011229 is about 292.4455456620.

The spelling of 25011229 in words is "twenty-five million, eleven thousand, two hundred twenty-nine".