25016839 has 2 divisors, whose sum is σ = 25016840. Its totient is φ = 25016838.

The previous prime is 25016837. The next prime is 25016897. The reversal of 25016839 is 93861052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25016839 - 2¹ = 25016837 is a prime.

Together with 25016837, 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 (25016837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12508419 + 12508420.

It is an arithmetic number, because the mean of its divisors is an integer number (12508420).

Almost surely, 2^25016839 is an apocalyptic number.

25016839 is a deficient number, since it is larger than the sum of its proper divisors (1).

25016839 is an equidigital number, since it uses as much as digits as its factorization.

25016839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 25016839 is about 5001.6836165435. The cubic root of 25016839 is about 292.4674091333.

The spelling of 25016839 in words is "twenty-five million, sixteen thousand, eight hundred thirty-nine".