25038929 has 2 divisors, whose sum is σ = 25038930. Its totient is φ = 25038928.

The previous prime is 25038913. The next prime is 25038967. The reversal of 25038929 is 92983052.

It is an a-pointer prime, because the next prime (25038967) can be obtained adding 25038929 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21715600 + 3323329 = 4660^2 + 1823^2 .

It is a cyclic number.

It is not a de Polignac number, because 25038929 - 2⁴ = 25038913 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 25038892 and 25038901.

It is not a weakly prime, because it can be changed into another prime (25038989) 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, 12519464 + 12519465.

It is an arithmetic number, because the mean of its divisors is an integer number (12519465).

Almost surely, 2^25038929 is an apocalyptic number.

It is an amenable number.

25038929 is a deficient number, since it is larger than the sum of its proper divisors (1).

25038929 is an equidigital number, since it uses as much as digits as its factorization.

25038929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 25038929 is about 5003.8913857117. The cubic root of 25038929 is about 292.5534672269.

The spelling of 25038929 in words is "twenty-five million, thirty-eight thousand, nine hundred twenty-nine".