25916623 has 2 divisors, whose sum is σ = 25916624. Its totient is φ = 25916622.

The previous prime is 25916621. The next prime is 25916669. The reversal of 25916623 is 32661952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25916623 - 2¹ = 25916621 is a prime.

Together with 25916621, it forms a pair of twin primes.

It is equal to p_1619638 and since 25916623 and 1619638 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25916621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12958311 + 12958312.

It is an arithmetic number, because the mean of its divisors is an integer number (12958312).

Almost surely, 2^25916623 is an apocalyptic number.

25916623 is a deficient number, since it is larger than the sum of its proper divisors (1).

25916623 is an equidigital number, since it uses as much as digits as its factorization.

25916623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 34.

The square root of 25916623 is about 5090.8371610178. The cubic root of 25916623 is about 295.9325958951.

The spelling of 25916623 in words is "twenty-five million, nine hundred sixteen thousand, six hundred twenty-three".